50 AK 500 Phantom 510 Whisper Sabot .308

[fpjeepy05]

Using the recoil calculator on handloads.com... 500 S&W Special 275 gr at 1350fps using 32 gr of powder in a 7 pound rifle... Free recoil energy 11.28 ft/lbs. 243 Winchester 100gr at 3000fps using 45gr of powder in a 7 pound rifle... Free recoil energy 10.43 ft/lbs. For comparison a 308 ... 168gr at 2820fps using 46gr of powder in a 7 pound rifle... Free recoil energy 19.59. So Close to the recoil of a .243 but a lot more knock down.