Your assurance of perfect alignment. The jaws actually float to permit the cartridge to find its exact center in the die.

When a case is in the shell holder, it’s supported by spring-loaded jaws that contact the base of the cannelure for more positive extraction. The shell holder is also self acting, so when a cartridge is placed in the die and the handle of the Co-Ax Press is activated, the jaws can open and close on the cartridge case. When the handle is raised, the jaws automatically open and release the case.

  • “S” (Standard) jaws are factory installed and ready for reloading
  • Optional “LS” (Large/Small) jaws, available separately, accommodate a wide range of very large and small case heads.

An alternative for other calibers is the Shell Holder Adapter Plate for Co-Ax Press, though it does not allow a cartridge to “float” as with our “S” and “LS” Shell Holder Jaws.

Case Compatibility Chart

Case Compatibility:
Shell Holder Jaw Reference for Popular*
Rifle Calibers

Caliber Shell Holder Jaws End to Use
221 Remington S Small
22 Savage S or LS Large
220 Swift S Large
225 Winchester S Large
240 Weatherby Magnum S Large
243 Winchester S Large
6mm PPC (US Version) S Large
25-06 Remington S Large
257 Weatherby Magnum S Large
264 Winchester Magnum S Large
6.5×54 Mannlicher-Schoenauer S Large
6.5 Remington Magnum S Large
6.5 Swedish-not listed S Large
7×64 Brenneke S Large
7mm x 08 Remington S Large
7 x 57 Mauser S Large
7mm Bench Rest Remington S Large
7mm Remington Magnum S Large
7mm Weatherby Magnum S Large
284 Winchester S Large
30-30 Winchester S or LS Large
30-40 Krag S or LS Large
307 Winchester S or LS Large
308 National Match S Large
308 Norma Magnum S Large
Caliber Shell Holder Jaws End to Use
30-06 Springfield S Large
300 Remington Ultra Magnum S Large
8mm Remington Magnum S Large
8 x 57 (8mm Mauser) S Large
8 x 68 S S Large
32 Winchester Self-Loading S Small
32 Winchester Special S Large
338 Winchester Magnum S Large
35 Remington S Large
356 Winchester S or LS Large
375 Weatherby Magnum S Large
38-55 Winchester S or LS Large
416 Remington Magnum S Large
375 Winchester S or LS Large
22 Remington Jet Magnum S Large
38 Special S Large
9mm Winchester S Small
351 Winchester Self-Loading S Small
45 Winchester Magnum S Large
45 Automatic (.45 ACP) S Large
45 Auto Rim *** *SPECIAL*
256 Winchester Magnum S Large
17 Remington S Small
222 Remington S Small
222 Remington Magnum S Small
Caliber Shell Holder Jaws End to Use
223 Remington S Small
224 Weatherby Magnum S Large
5.6 x 50 Magnum S Small
221 Remington Fireball S Small
30 Lugar S Small
30 Carbine S Small
32 Smith & Wesson S Small
32 Smith & Wesson Long (32 Colt New Police) S Small
32 Short Colt S Small
32 Long Colt S Small
32 Automatic (.32 ACP) S Small
357 Magnum (357 S & W Magnum) S Large
9mm Lugar (9mm Parabellum) S Small
380 Automatic (380 ACP, 9mm Kurz, 9mm Corto, 9mm Short) S Small
38 Automatic (.38 ACP) S Small
38 Super Automatic S Small
38 Smith & Wesson (38 Colt New Police) S Large
38 Short Colt S Large
38 Long Colt S Large
219 Zipper S or LS Large
5.6 x 50 Rimmed Magnum S Large
22-250 Remington (.22 Varminter) S Large
6mm Remington S Large
6.5 Carcano S Large
270 Weatherby Magnum S Large
Caliber Shell Holder Jaws End to Use
280 Remington (7mm Express, 7mm-06 Remington) S Large
7 x 57 Mauser (7mm Mauser) S Large
7 x 61 Super Norma (7×61 Sharpe & Hart) S or LS Large
7.5 x 55 Schmidt-Rubin (7.5×55) S or LS Large
30 Remington S Small
25-35 Winchester S or LS Large
250 Savage S Large
257 Roberts S Large
6.5 x 55 Mauser S Large
30-06 Springfield S Large
300 Savage S Large
300 H & H Magnum S Large
300 Winchester Magnum S Large
303 Savage S or LS Large
303 British S or LS Large
308 Winchester S Large
300 Weatherby Magnum S Large
8 x 57 JS Mauser S Large
8 x 57 Mauser (8mm Mauser) S Large
32 Remington S Small
32-40 Winchester S or LS Large
38 Long Colt S Large
41 Remington Magnum S Large
44 Remington Magnum S Large
Caliber Shell Holder Jaws End to Use
44 Smith & Wesson Special S Large
45 Colt S Large
10mm Automatic S Large
340 Weatherby Magnum S Large
350 Remington Magnum S Large
358 Norma Magnum S Large
375 H & H Magnum S Large
444 Marlin S or LS Large
44-40 Winchester (.44 WCF) S or LS Large
458 Winchester Magnum S Large
300 RUM S Large
300Sh RUM S Large
270 WSM S Large
7mm WSM S Large
7mm RUM S Large
7mmSh RUM S Large
300 WSM S Large
375 RUM S Large
38-40 Winchester (.38 WCF) S Large
25 Automatic (.25 ACP) LS Small
22 Hornet LS Small
378 Weatherby Magnum LS Large
45-70 Government/Sharps LS Large
416 Rigby LS Large
45-90 Winchester LS Large
348 Winchester LS Large
7.62 x 39mm S Large
218 Bee S Small
7.62×54 Rimmed (7.62 Russian) LS Large
Caliber Shell Holder Jaws End to Use

* This list is not comprehensive.

Weight N/A
Size

S (Standard), LS (Large/Small)