Bolt thrust
Bolt thrust estimations for various rifle cartridges
Columns: Chambering | P1 diameter (mm) | A external (cm 2 ) | P max ( bar ) | F bolt ( kgf ) | F bolt
5.45x39mm | 10.00 | 0.7854 | 3800 | 2985 | N ( lbf ) | .223 Remington | 9.58 | 0.7208 | 4300 | 3099 | N (lbf) | 7.62x39mm | 11.35 | 1.0118 | 3550 | 3592 | N (lbf) | .308 Winchester | 11.96 | 1.1234 | 4150 | 4662 | N (lbf) | .300 Winchester Magnum | 13.03 | 1.3335 | 4300 | 5734 | N (lbf) | .300 WSM | 14.12 | 1.5659 | 4450 | 6968 | N (lbf) | .300 Remington Ultra Magnum | 13.97 | 1.5328 | 4480 | 6876 | N (lbf) | .338 Lapua Magnum | 14.91 | 1.7460 | 4200 | 7333 | N (lbf) | .300 Lapua Magnum | 14.91 | 1.7460 | 4700 | 8339 | N (lbf) | .50 BMG | 20.42 | 3.2749 | 3700 | 12117 | N (lbf)