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Forster 222 Remington HeadSpace Gage GO& No-Go Set Of 2 Gauge Barrel Chambering, This Auction is for a a Set of 2 Forster Head-Space Gauges for Caliber: 222 Remington. Wilson Case Length Headspace Gauge 303 BRITISH [ CG-303B ] Brand New! applied to the left side as above and both sides of the inner screw, elevating gear of the mounting. #1 gives the most headspace. If chamber headspace is excessive, the gun should be taken out of service until it has been inspected and repaired by a competent gunsmith. 338 Lapua. 15pcs Gunsmithing Tool Hammer Brass Steel Punch Repair Tools Storage Case Set. Also, No.1 bolt heads were lapped to fit upon assembly originally. Oxnard, CA. Because the .303 British headspaces on the rim, this excess shoulder clearance is inconsequential to headspace. The British Ministry of Defense (MOD) spec for a 303 No-Go gauge is .074". At Clymer, we manufacture our Headspace gauges from precision ground hardened US steel to SAAMI's ANSI tolerances. Post Reply. Brand New. Manufactured from top-quality, hardened steel and precision ground to ANSI and SAAMI tolerances. Jul 8, 2021. For instance, .30-06 #1 gives the most headspace. The area forward of the recess - the space where the body of the case sits - can be any length, but still headspace correctly. BRITISH) GO.064 Gage Headspace Gauge Up for auction is this used 303 BR. Details about Forster 303 British - .074 Old Military dimension - FIELD Headspace Gauge Gage See original listing. Sloppy headspace is a common complaint with Short Magazine Lee Enfield (SMLE) rifles. Headspace gauge: Post Reply : Author: Message Topic Search Topic Options. $15.99. $30.1 Forster Rimmed & Belted Headspace Gage .303 British Field Length BG303F Flat Rate Shipping Guaranteed. L.E. I will be happy to help! New.Made of tool steel.Natural finish.Precision machined,hardened and precision ground. 325 WSM (Winchester Short Mag) 2. The most important use of a cartridge case gage is for setting up 78"-14 press type full length resizing dies. There are no reviews yet. Many headspace gauges will work on more than one chamber. Just use the part of the barrel that you cut off and use about 1.5 inch of it. Read more. There were several Maximums during the war as standards were relaxed to get the guns out the door. 8 mm Mauser (8 x 57 mm Mauser) 2. Product description. - 6.5 Creedmoor Gauges work on 6.5 Creedmoor and 6mm Creedmoor - 6.5x55 Swede gauges work on the 6.5 x 55 Swedish Mauser. A multi-gauge set will have a precision-ground gauge at each .001-inch interval along the headspace spread. Exclusions apply. 7.62 x 39 mm Russian. Military headspace specs for the .303 allow for .074 headspace. 100-010-715 . They included a section on testing headspace and it seemed like an important part of the process. Pacific Tool and Gauge cannot change, cancel or refund an order for a Custom Product. The proper use of a Headspace Gage is the most reliable way to test the length of a rifle chamber. Headspace in 303 British Cartridge 34.90. The real problem is we are using American SAAMI resizing dies on a British military rifle that enlarged the .303 chamber to make room for the mud of Flanders fields. Original issue Headspace Gauge, .303 British, MINIMUM, 1.63 mm (0.064 in.) 6. item : fpbg303n_1. By CIP spec. Full sets for three calibers (223, 308 and 30-06). I'm looking for a gunsmith that might have a set of .303 British gauges to check headspace for me. Product no. FORSTER HEADSPACE GAUGES FORSTER 303 BRITISH NO-GO GAUGE. 152, 50 USD 187, 00 USD. Gauge Set: Go, No-go, Field, Go, No-go & Field (3 pc Set), Go & No-go (2 pc Set), No-go & Field (2 pc Set) Reviews. By British Military standards a "no-go" gauge would measure 0.70", and a "field" measurement would be 0.74". The headspace gauge set .303 British / Lee-Enfield is a practical inspection tool for quick and easy checking of the headspace of firearms chambered in .303 British by means of a GO, and FIELD gauge acc. The field gauge is close to closing but I wouldnt dare try and smack it shut. Improper headspace may be dangerous to the shooter as well as an impairment to accuracy. The proper use of Headspace Gages is the most reliable way to test the length of a rifle chamber. Read More The rifle is registered as a .308 winchester and those are the gauges I'm using, but here in Australia 7.62 Nato and .308 Win are generally Headspace on an M1917 Essential when dealing with milsurps to ensure proper headspace for safety. 3. AU $50.17 Headspace Gauge Comparator Kit (Tool Free) with Magnetic Base Hornady HK55 Lock-n-Load 5pc Bushing Set for Headspace Gauge (without body) New New New. The case walls of milspec ammo is usually, though not always, much thicker and less likely to split. 02:56 PM. Steel, rejecting diameter, of elevating pin hole on gun and mounting. Comments about Forster Headspace Go Gauge 243 Winchester, 260 Remington, 7mm-08 Remington, 308 Winchester, 338 Federal, 358 Winchester. Cases with the thicker rims can take up some slack in headspace. Send Private Message. Just measure from the back of the gauge to the case base with calipers. EMAIL WHEN AVAILABLE. Mfr Part: CG303B. 3. A .070" No-Go gauge is standard for commercial 303's. Regular Price: 38.50. I will ask a tool maker I know. Spazio di testa dei casi licenziati rapidamente e con precisione misurabile utilizzando questo 1 for rifles No.1.-These gauges are used also for .303-inch machine- guns, with the exception of the .074, which is not used for Vickers guns. These gauges are necessary when finish chambering a barrel, or when checking the chamber of a used gun to be sure the headspace dimensions are within safe limits. As the numbers get bigger, the heads get longer, thereby reducing headspace. Commercial headspace specs for .303 rifles are Minimum .064 with a maximum of .068. 749003941. Cross-compatibility: Many of our headspace gauges are compatible with multiple chamber specifications. This means you can have between .006 and .016 head gap clearance. Headspace Gage 303 British Field Gage. I simply take a fired 303 Brit case fired in a No 4 and run it into the altered 30.06 dies and the die rolls the shoulder of the 303 to the rear and stops. 7.62 x 54 mm Russian. Un errore comune nel ricarico vostro ottone oversize. Gauges and tools for 308. The 'proper' "Gauges Armourers, Headspace" were just short lengths with enough space to mark them, and big enough to be able to handle them. The Lee Case Length Gauge gives you a fast and accurate way to trim your brass cases while also Below is a sectioned Winchester .303 British case fired in one of my No.4 Enfield rifles with the headspace set at .066. 2 product ratings. by trekin Mon Dec 24, 2018 5:41 pm. - 243 - 308 Family gauges work on .243 Win, 260 Rem, 7-08 Rem, 308 Win, and 358 Win. Choosing the Correct Gage According to SAAMI (Sporting Arms and Ammunition Manufacturers Institute), who set product standards for firearms and ammunition, headspace is The distance from the face of the closed breech of a firearm to the surface in the chamber on which the cartridge case seats.Some shooters are under the misconception that headspace is fixed over There are several ways to check the headspace without a set og dedicated gauges. $69.91. 303 british resizing problem. 3. Trim to length 2.202 to 2.222 inches. Cases with the thicker rims can take up some slack in headspace. Rental Price $7.00. Choosing the Correct Gage According to SAAMI (Sporting Arms and Ammunition Manufacturers Institute), who set product standards for firearms and ammunition, headspace is The distance from the face of the closed breech of a firearm to the surface in the chamber on which the cartridge case seats.Some shooters are under the misconception that headspace is fixed over Essenziale quando chambering un nuovo barile per garantire una camera stretta, precisa, sicura. 17 Hornady Magnum Rimfire Headspace Gauges. Forster Products 303 British NO-GO Headspace Gage Gauge Gunsmithing Barrels NEW | eBay Gauge Set: Go, No-go, Field, Go, No-go & Field (3 pc Set), Go & No-go (2 pc Set), No-go & Field (2 pc Set) Reviews. Forster Products 303 British NO-GO Headspace Gage NEW. 4 product ratings. Will a headspace gauge work in any rifle of the same caliber? sku : bg303n. Plug 0.45in. Brownells Part No : 184100302. to military specification and an additional NO-GO gauge Supplied Parts: The only way to accurately measure and test the length of the chamber of the rifle. Regular Price: 38.50. Gauges, armourers, .064-inch No 1 and.074-inch No. Availability: Oxnard, CA. 3. Forster Headspace Gage 303 British Field BG303F. 303 British: 357 MAG: 256 Win Mag, 357 Max, 38 Special, 22 Rem Jet: 44 REM MAG: 44 Special: 45-70 GOVT: 33 Win, 348 Win: BELTED.535 Based Belted Calibers, 300Win, 350Rem, 375H&H: 5 Stars, 2 product ratings 2. Additional Info. C Traduzione automatica (Descrizione originale - Produttore): L'unico modo con precisione di misura per la lunghezza della camera del fucile. A: Your set of three headspace gauges are Go, No-Go and Field. The Go gauge (0.64) measures the minimum distance between the face of the breech and the second indexing point. Well, in my cleaning/inspection process prior to test firing I always check the headspace with my Forster .303 British Field Gauge (yup, removed the extractor and firing pin before checking). Additional Info. The 303 headspaces on the cartridge rim (hence the use of 'coin' headspace gauges) so the length of the 'cartridge' is totally irrelevant. Please make sure to read the title and description of the item. 7,92 Kurz Finisher + Headspace gauges set . Verified Buyer. 30-30 Winchester. Mk. Top. Re: 303 Headspace gauge. Take a FORSTER HEADSPACE GAUGE .067" NO GO, 303 BRITISH. The bolt head on a smle #4 mk1 is interchangeable. $9500. The most important use of a cartridge case gage is for setting up 78"-14 press type full length resizing dies. Chamber Reamer+Headspace Gauges GO & NO GO Set. Rental Price $7.00. 32-40 Winchester. L.E. 35 sold 35 sold 35 sold. 7.62 mm NATO. 303 British. Headspace gauges are available from www.brownells.com or from www.midwayusa.com or directly from Clymer, Dave Manson or Forster. As the numbers get bigger, the heads get longer, thereby reducing headspace. Use that one to check seating depth to the lands and grooves. For example, 5.56x45mm NATO ammunition headspaces off the shoulder of the cartridge, whereas .303 British headspaces off the forward rim of the cartridge. Lee 303 BRITISH Case Length Gauge is a precise, easy way to trim to length and square the case mouth. 303 Today I was shooting my (one and only) 303 British Enfield and a knowledgeable shooter commented to me that since the 303 British head spaces on the rim, and not the shoulder, in order to extend the life of the brass, I should only be bumping the shoulder back a couple of thousands rather than full length resize. Consult a reputable trustworthy gunsmith if you are in any doubt as this is a safety issue. In most cases this means a set of 3 gauges, GO, NO-GO, & FIELD, but for five sets (250 Savage, 378 Wby, 416 Wby, 460 Wby & 7.6254 Russian) there are only 2 gauges manufactured, NO-GO & FIELD. What about headspace gages? 4.5 out of 5 stars. 749003941. Please refer to the Gauge drop down menu below to select the caliber of the SET. 3 DIE SET 32S&W LONG PARTS (Category) 32 S&WL X PLG ALT OV SZ PARTS (5) 3 DIE SET 357MAG CARBIDE PARTS (8) Plug 0.445in. Read 14 more ratings on brownells.com. It has some very light wear. Headspace tolerance ground to a very exacting .00015. Share - Forster Headspace Gage 303 British Field BG303F. Choosing the Correct Gage According to SAAMI (Sporting Arms and Ammunition Manufacturers Institute), who set product standards for firearms and ammunition, headspace is The distance from the face of the closed breech of a firearm to the surface in the chamber on which the cartridge case seats.Some shooters are under the misconception that headspace is fixed over Hello, This is my first of probably several beginner questions regarding the AR-15 platform. 2. Handy if you swap pins or bolt heads. 4. If you have questions, please call us at (541) 826-5808. 749003941 L.E. Specs: Cartridge: 303 British Style: Go Gauge. That's exactly what I was thinking trekin. The case walls of milspec ammo is usually, though not always, much thicker and less likely to split. Full sets for three calibers (223, 308 and 30-06). 2. WILSON, INC. 303 BRITISH CASE GAGE. 303 Savage. AU $62.61. BRITISH) GO.064 gage. ZPV 30-06 Springfield finisher with live pilot + Headspace gauges Go & No Go Set. Using such a set, a gunsmith can ream a chamber to an exact specification. 34.90. By SAAMI standards, 0.070" is the length of a "field" gauge for the .303 British. So when you buy a "field" gauge from Brownell's (or any other dealer for that matter) what you are actually getting is a "no-go" gauge. No1 MkIII* SMLE .303 rifle No 4 Lee Enfield .303 Rifle No3 Pattern 14 .303 Rifle for which conventional Mauser-style headspacing methods were used. Details about L.E. Our headspace gauges are solely intended for use as a preliminary inspection tool, and as such, are not intended to replace a full inspection by a qualified gunsmith. Mfr Part: CG303B. Regarding headspace, which usually starts a brawl online. UK Military .303 chambers have shoulder a clearance of about 1/16" beyond the shoulder of a maximum cartridge, to ensure rifles will function with dirty ammunition under combat conditions of mud, sand, or dust. 1. Chamber reamer: .303 British finisher chamber reamer By SAMMI spec. It has. 17 Mach IV Headspace Gauges. Reviewed in the United States on January 25, 2014. A gunsmith with a supply of bolt heads should be able to fix the problem in about 5 minutes. 2. 30-06 Spring. Made myself a set, go, no go & field, a few years ago when I had access o a small lathe. The GO,NO GO and Field are made to SAMMI specifications. Chamber Reamer+Headspace Gauges GO & NO GO Set. 4.0 out of 5 stars 2 product ratings. Forster Products manufactures precision headspace gauges to maximize safety and accuracy in your rifle. In other words, a perfectly headspaced 303 British can have an excessively long chamber, but pass a gauge check. 4.4 out of 5 stars based on 7 product ratings (7) $20.99 New---- Used; You may also like. Stripped to its essentials, with a rimmed cartridge like the .303, headspace is simply the distance between the front of the bolt and the back of the barrel. Make your own. It's the space where the "head" (rim) of the cartridge fits when the rifle is loaded. Easily shows if trimming is needed. Forster Headspace Gauge Set. It has. It has some very light wear. Forster Headspace Gages are made to exacting manufacturing standards to ensure accurate testing of your rifle's chamber. CLYMER HEADSPACE GAUGES GO .30-40 KRAG .303 BRITISH. 17 Ackley Hornet Headspace Gauges. Forster Products 303 British NO-GO Headspace Gage NEW. Spare parts for smle rifles are getting progressively harder to find. This set of tools is made from hardened steel to ensure a lifetime of durable performance and is precision-crafted to tight SAAMI specifications. The area forward of the recess - the space where the body of the case sits - can be any length, but still headspace correctly. 05-23-2022. 17 Remington Fireball Headspace Gauges. This case is now used as the headspace gage. 8 mm-06. Gunsmithing 303 BR. Forster 222 Remington HeadSpace Gage GO& No-Go Set Of 2 Gauge Barrel Chambering, This Auction is for a a Set of 2 Forster Head-Space Gauges for Caliber: 222 Remington. Forster gauges are made to SAAMI specs. There are no reviews yet. Forster Products manufactures precision headspace gauges to maximize safety and accuracy in your rifle. SM 185 Inspectors, plug, 0.45in. FORSTER HEADSPACE GAUGES FORSTER 303 BRITISH GO GAUGE. 5.0 average based on 2 product ratings. Default Title. The next thing is to forget your 'field gauge' whatever a Foster field gauge is and beg, steal or borrow a set of correct gauges. 5. HSS S705 Bohler steel Brand new Mfg. Honkytonk . Senior Member Joined: December 30 2017 Location: Brandon Mb Status: Offline Yes they are called Wilson Case Gauge BUT they are for a SAAMI commercial chamber BUT they tell an interesting story, the cases rest on the shoulder for gauging purposes. Sloppy headspace is a common complaint with Short Magazine Lee Enfield (SMLE) rifles. Manufactured from top-quality, hardened steel and precision ground to ANSI and SAAMI tolerances. 2. 338-06. The topic of 303 Headspace is a minefield as there are so many experts out there. 201, 00 USD 166, 50 USD. Free shipping Free shipping Free shipping. BRITISH) GO.064 gage. Commercial headspace specs for .303 rifles are Minimum .064 with a maximum of .068. Spare parts for smle rifles are getting progressively harder to find. The "field" measurement Product code: 793252. Members Profile. Page: 1 - FORSTER HEADSPACE FIELD GAGE RIMMED AND BELTED FOR 303 BRITISH #BG303F. Original issue Headspace Gauge, .303 British, MINIMUM, 1.63 mm (0.064 in.) 3. : 319418242 757253002861 319418242 Today I was shooting my (one and only) 303 British Enfield and a knowledgeable shooter commented to me that since the 303 British head spaces on the rim, and not the shoulder, in order to extend the life of the brass, I should only be bumping the shoulder back a couple of thousands rather than full length resize. L.E. Add to Wish List. Tray 1 is the top tray and Tray 2 is the bottom tray. The headspace is easily corrected by installing a longer bolt head. Each set contains 11 gages, clearly marked in .001 increments from shortest SAAMI length to longest SAAMI length. (14) 38.65 63.95 68 GBP. Printable Version. These gauges arenecessary when finish Popular Account 0 Basket Trustpilot 4.7 | 30-40 Krag. Wilson Cartridge Case Gauge 303 British Technical Information: Material: Steel Precision Machining -This is a one-piece, non-adjustable cylinder-type gage for checking fired and resized cartridge cases for cone-to-head and overall length -Used to compare cartridges against the minimum SAAMI chamber dimensions Instructions: -Drop a fired case into the gage. The bolt head on a smle #4 mk1 is interchangeable. 3. Altro N. prodotto: 319418241 757253002885 319418241 Wilson Iron Set Golf Clubs, Wilson Staff Driver Golf Clubs, Wilson Golf Gloves for Men; Additional site navigation. Forster Products 303 British NO-GO Headspace Gage Gauge Gunsmithing Barrels NEW | eBay Click for details. FIELD gauges are slightly shorter than the SAAMI maximum in order to give a small safety margin. applied to the right side of elevating joint pin hole of the gun. SKU: HSG303. These gauges are necessary when finish chambering a barrel, or when checking the chamber of a used gun to be sure the headspace dimensions are within safe limits. The micrometer gauge is a chamber-shaped adjustable measuring tool not commonly seen outside of factories or arsenals. Item #: LWCG303B. It is also the one use to set headspace 243 Win, and 7mm - 08. Essential when chambering a new barrel to ensure a tight, accurate, safe chamber. Add to Buddy List. Our headspace gauges are solely intended for use as a preliminary inspection tool, and as such, are not intended to replace a full inspection by a qualified gunsmith. I can't see paying $75 - $100 for a set that I'll basically use once. Add to Compare. Forster Products manufactures precision headspace gauges tomaximize safety and accuracy in your rifle. Of note is the fact that the European CIP the equivalent of the American SAAMI states that the .303 British has "Problematic Headspace" read below. Set of 8. Product Description. Easily shows if trimming is needed. Choosing the Correct Gage According to SAAMI (Sporting Arms and Ammunition Manufacturers Institute), who set product standards for firearms and ammunition, headspace is The distance from the face of the closed breech of a firearm to the surface in the chamber on which the cartridge case seats.Some shooters are under the misconception that headspace is fixed over Forster Headspace Gage Field Length 303 British Currently unavailable. 44.9 GBP 0 44.90 * Notify on availability. 1. Backorder is currently not available. The chamber does not look like it has a ring in it though. #1. Rental Price $7.00. model : upc : 757253002885 307 Winchester. WILSON, INC. 303 BRITISH CASE GAGE. They sell a three set of Go, No-Go, and Field (0.074"), and it FORSTER HEADSPACE FIELD GAGE RIMMED AND BELTED FOR 303 BRITISH #BG303F. I have an SMLE, P14 & a Ross MK2, all .303 British. FORSTER HEADSPACE FIELD GAGE RIMMED AND BELTED FOR 303 BRITISH #BG303F. If the the .303 chamber didn't require headspacing then WHY do the make headspace gauges for it and replaceable bolt heads. 5. Whenever you buy a used gun, always check the headspace before firing. Special Price. Price: $30.99. Verified Purchase. BRITISH) GO.064 Gage Headspace Gauge Up for auction is this used 303 BR. https://www.tectal.at/en/lee-enfield.303-british/25/headspace-gauge-set.303-british/lee-enfield Above is a link to a European source for button style head space gauges. Thanks. Headspace standards are set by SAAMI (Sporting Arms and Ammunition Manufacturers Institute) specific 5.56mm NATO MAX and 5.56mm NATO MIN Headspace Gauge Set. and 0.445in. Headspace tolerance ground to a very exacting .00015. 303 british no go headspace gage. Excessively long chambers were usually the result of a manufacturing reamer plunging too deeply. You are buying a complete set of gauges. I thread the barrel blank to approximate 303 Brit rim headspace and then start running the reamer in. If the headspace is too short, ammunition that is in specification may not chamber correctly. HSS Bohler S705 Steel Chamber Reamer. 3. In other words, a perfectly headspaced 303 British can have an excessively long chamber, but pass a gauge check. Headspace Gauges 303 British (HSG303) 4 reviews. These are my 0.064" and 0.074" Canadian issue gauges. #1. Used with the Cutter and Lock Stud. Jul 8, 2021. The set listed via E-bay has an FP protrusion gauge as well. (14) 38.65 63.95 68 GBP. - Rimless - 223 Remington gauges work on .223 Rem and 6x45. Forster gauge top quality and more accurate than coin style gauges. Read 14 more ratings on brownells.com. Military headspace specs for the .303 allow for .074 headspace. Headspace is the distance between the face of the breech and the base of the cartridge when the action is closed and excessive headspace can be dangerous as well as impair accuracy. The Lee Case Length Gauge and Shell Holder comes in a wide variety of sizes to accommodate all of the most popular cartridge calibers. by ZPV We deliver our products exclusively by DHL express courier service, all in order to increase our customers satisfaction with our complete service. This particular rifle allows me to change barrels between 308 Win (7.62mm X 51mm) and 260 Remington (6.5mm X 51mm). I'm building my first AR-15 and have just read 'The AR-15 Complete Assembly Guide' by Kuleck and McKee. Find Members Posts. Also the average rim thickness for American made .303 cases is .058 and minimum headspace is .064 and maximum is .074. Each set contains 11 gages, clearly marked in .001 increments from shortest SAAMI length to longest SAAMI length. Translate Topic. 303 British No-Go Length Head Space Gauge by FORSTER RELOADING PRODUCTSEvery gunsmith knows that proper use of a headspace gage is the most reliable way to test the length of a rifle chamber. The gauges are marked Central and 064, 0.67 and 0.70. Excessively long chambers were usually the result of a manufacturing reamer plunging too deeply. Gunsmithing 303 BR. Stoney wrote: trekin wrote: If you know someone with a lathe, they're easy enough to make. Run the reamer in it to cut only a throat. Forster 222 Remington HeadSpace Gage GO& No-Go Set Of 2 Gauge Barrel Chambering, This Auction is for a a Set of 2 Forster Head-Space Gauges for Caliber: 222 Remington. .303 Headspace Gauges Q: I've been given a set of three headspace gauges for the .303 British cartridge for use by our military rifle club, since most members shoot either SMLEs or P-14s. This product is out of stock. Add to shopping list. New Muzzle Wear Gauge Gage M1 Gunsmithing Tool fits any .30 Cal. The Forster 303 British Headspace Gauge might save you a lot of time and trouble before you buy a 303 or if you have one already but are not obtaining satisfactory results. Mfr Part: BG303F. 2. 33 WCF. Below is a Wilson .303 British case gauge, the amount the case is sticking above the gauge is how much longer the shoulder location was reamed/moved forward in the military chamber. Status : Price : $0.00. Special Price. 17 Javalina Headspace Gauges. Description. We don't know when or if this item will be back in stock. I just bought a new unissued bolt for my .303 british. 308 Winchester. Opens in a new window or tab. I will be happy to help! But I wasn't 100% clear on the necessity of doing this with pre-assembled FORSTER 303 BRITISH GO GAUGE Mfr Part: BG303G 757253002878. Chamber Reamer. 32-20 Winchester. 2. 7.62 x 39 mm. 5.0 out of 5 stars. 3. Default Title - Email me when available Quantity. Wilson 303 British Case Length Headspace Gauge. Big Book Catalog, Issue:49, Page:095 Big Book Catalog, Issue:50, Page:101 Big Book Catalog, Issue:51, Page:109 Big Book Catalog, Issue:52, Page:106 303 BRITISH FIELD GAUGE. Local Time. Headspace for the .303 British cartridge and Lee-Enfield rifles can be a very confusing issue. Forster offers three lengths of headspace gages per rifle caliber. Description. WILSON, INC. 303 BRITISH CASE GAGE Parti Fabbricante: CG303B L'uso di un calibro di cartuccia caso pi importante per l'impostazione 78 "stampa-14 tipo completo lunghezza ridimensionamento muore. Create New Topic. FORSTER HEADSPACE GAUGES FORSTER 303 BRITISH FIELD GAUGE. The rifle is a no1mk3* the barrel is in great shape and does not seem to have a headspace problem. Q: I've been given a set of three headspace gauges for the .303 British cartridge for use by our military rifle club, since most members shoot either SMLEs or P-14s. The gauges are marked Central and 064, 0.67 and 0.70. Can you tell me how they work? A: Your set of three headspace gauges are Go, No-Go and Field. Rental Price $7.00. .303 British headspace gauge set.Includes a GO,NO GO,Field and Royal Field (.074"). Shipping: One flat fee of $12.95 per online order. Check out other products from Gillies. The gauges are for testing the distance of the face of the breech bolt from the end of the chamber, or, in other words, the cartridge head space. 30/284 Winchester.