Here is a list of some cartridge case volumes that I calculated. These are APPROXIMATE, they are close and are based on standard case dimensions and do not take into account the variations between different manufacturers. Again they are based on the standard chambering, individual manufactures will make cases that vary and after firing in different chambers the volume will change slightly. This is for comparison only, I would not use this to calculate pressures. If this helps you enjoy it, if not ignore it. The first number is to the top of the shoulder. The one in parenthesis includes the entire case neck. Bottle neck cartridges are listed first. The straight wall cartridge list is small, but its what I could work with. The straight wall list has the total volume listed first and the volume available after a bullet is seated to the average seating depth second.
| Case ID | Volume to Top of Shoulder | Total Volume to Top of Case Neck |
| 22 Hornet | 0.043 | (0.056) |
| 222 Rem | 0.101 | (0.113) |
| 223 Rem | 0.105 | (0.120) |
| 222 Rem Mag | 0.119 | (0.129) |
| 225 Win | 0.157 | (0.167) |
| 22-250 | 0.166 | (0.176) |
| 220 Swift | 0.175 | (0.187) |
| 243 Win | 0.209 | (0.220) |
| 6mm Rem | 0.208 | (0.224) |
| 240 Wby | 0.240 | (0.257) |
| my new 6mm wildcat | 0.261 | (0.278) |
| 250 Savage | 0.165 | (.0179) |
| 257 Roberts | 0.180 | (0.197) |
| 25-06 Rem | 0.253 | (0.269) |
| 257 Wby | 0.321 | (0.340) |
| 6.5 Rem Mag | 0.260 | (0.274) |
| 264 Win Mag | 0.308 | (0.322) |
| 270 Win | 0.259 | (0.282) |
| 270 Wby | 0.309 | (0.331) |
| 7-30 Waters | 0.168 | (0.187) |
| 7mm-08 Rem | 0.213 | (0.231) |
| 7x57 Mauser | 0.208 | (0.230) |
| 284 Win | 0.254 | (0.272) |
| 280 Rem | 0.259 | (0.281) |
| 7mm Rem Mag | 0.327 | (0.345) |
| 7mm Wby | 0.309 | (0.334) |
| 30-30 Win | 0.169 | (0.201) |
| 300 Savage | 0.197 | (0.214) |
| 308 Win | 0.206 | (0.229) |
| 30-40 Krag | 0.199 | (0.235) |
| 30-06 Springfield | 0.249 | (0.278) |
| 300 H&H Mag | 0.320 | (0.348) |
| 308 Norma Mag | 0.328 | (0.352) |
| 300 Win Mag | 0.328 | (0.349) |
| 300 Wby | 0.365 | (0.395) |
| 7.62x39 | 0.109 | (0.133) |
| 303 British | 0.184 | (0.209) |
| 8x57 Mauser | 0.228 | (0.254) |
| 8mm-06 | 0.253 | (02.86) |
| 8mm Rem Mag | 0.374 | (0.400) |
| 338 Win Mag | 0.314 | (0.343) |
| 340 Wby Mag | 0.368 | (0.404) |
| 35 Rem | 0.176 | (0.210) |
| 350 Rem Mag | 0.265 | (0.299) |
| 375 H&H | 0.322 | (0.361) |
| 416 Rigby | 0.444 | (0.512) |
| 416 Rem | 0.361 | (0.418) |
| 460 Wby | 0.481 | (0.553) |
| Case ID | Total Volume | Volume after a Bullet is Seated |
| 30 Carbine | 0.081 | (0.067) |
| 357 Mag | 0.111 | (0.082) |
| 375 Win | 0.198 | (0.141) |
| 44 Mag | 0.156 | (0.107) |
| 444 Marlin | 0.291 | (0.235) |
| 458 Win | 0.371 | (0.315) |
Remember these are close, but only approximate. The only way to get the exact number is by direct measurement with water or a similar method. Even cases shot in the same chamber vary. Also, I know the 30-06 does not agree exactly with what General Hatcher published, but remember his data was from military brass which is heavier than commercial brass.
Enjoy : Jeff Harp : 29 January 1998