A 400 grain bullet has a lot more momentum than a 240 grain bullet and it's momentum that determines gun recoil.
Compare the recoil of a .22-250 rifle to the recoil of a 12 gauge shotgun shooting target loads and you'll see what I mean. 1-1/8 ounces of shot @ 1145 fps has 1431 ft lb of energy.
A typical factory-loaded .22-250 Remington shoots a 55 grain bullet at 3,680 fps with 1,654 ft. lb of energy.
But the 12 gauge kicks a lot more in spite of the fact that it delivers less energy and burns less gunpowder.
Compare the recoil of a .22-250 rifle to the recoil of a 12 gauge shotgun shooting target loads and you'll see what I mean. 1-1/8 ounces of shot @ 1145 fps has 1431 ft lb of energy.
A typical factory-loaded .22-250 Remington shoots a 55 grain bullet at 3,680 fps with 1,654 ft. lb of energy.
But the 12 gauge kicks a lot more in spite of the fact that it delivers less energy and burns less gunpowder.