Excellent ammo carrier to throw in your pocket or pack to keep your rounds from rattling around and getting dirty. Holder carrier fits for 5.56×45 M855 5.7×28 7.62x25mm 7.62x39mm 7mm 8mm 9mm 9x57mm Mauser .204 Ruger .22-250 Rem .222 Rem .223 Rem .243 Win .25-06 Rem 30-30 .30 Carbine .30 R Blaser .300 .357 Magnum .410 Bore .44 .38 Caliber .38 Special .38 Super .380 ACP .40 S&W .41 Mag 22 Tom Cat 22-40, 22-45, 222 1/2, 6×47 Federal 6×47-40 6×47-45 .22-250 REM .220 SWIFT .25-06 REM .280 British .243 Win .221 Rem .308 .338 30-06 7.62×54 45-70 .460 etc.