Combined Services - Rifle Projectile Energy Levels
| Calibre | Description | Projectile Weight (gn) |
Speed (ft/sec) |
PEL 100% | PEL 75% |
| .25-20 | Winchester L/A | 86 | 1710 | 147 | 110 |
| .303 | British | 174 | 2470 | 430 | 322 |
| .30-40 | Krag | 220 | 2000 | 440 | 330 |
| .310 | Cadet | 120 | 1200 | 144 | 108 |
| .32-20 | Winchester L/A | 115 | 1280 | 147 | 110 |
| .30-06 | Remington | 152 | 2800 | 426 | 319 |
| 6.5 x 55 | Swede | 156 | 2380 | 371 | 278 |
| 6.5mm | Arisaka Spitzer Ball | 139 | 2500 | 347 | 261 |
| 6.5mm | Carcano Ball | 162 | 2296 | 372 | 279 |
| 7mm | Mauser Ball | 173 | 2296 | 397 | 298 |
| 7.35mm | Carcano Ball | 128 | 2482 | 318 | 238 |
| 7.5mm | Swiss Mod 90/03 Ball | 211 | 1980 | 418 | 313 |
| 7.5mm | Swiss Mod 1911 Ball | 174 | 2640 | 459 | 345 |
| 7.65mm | Mauser RNB | 211 | 2132 | 450 | 337 |
| 7.65mm | Mauser SBB | 185 | 2467 | 456 | 342 |
| 7.62mm | Russian M 1908 Ball | 150 | 2850 | 427 | 321 |
| 7.7mm | Ball | 183 | 2300 | 421 | 316 |
| 8 x 50R | Mannlicher Ball | 244 | 2034 | 496 | 372 |
| 8mm | Model 1888 Ball | 227 | 2100 | 477 | 357 |
| 8mm | Mauser S Ball | 198 | 2476 | 490 | 368 |
| PEL = | Proj Weight (gn) x Velocity (ft/sec) 1000 |
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References:
Smith, WHB and Smith, JE, 1948, The Book of Rifles, Winchester Press.