Thread: New rifle, scope question

Originally Posted by Gibo

Still no. This was what I was referring to.

If he wants lighter recoil then choosing between identical models of 308 vs 7mm08 (say a T3) then the weight difference between the rifles is negligible, and the energy of the bullet at the muzzle is close enough to identical between the calibres, thus there is almost no difference in recoil between the two

Look at Core-lokt and the usual packet velocities.

308, 150gr, 2820f/s - mxv = 423k units of momentum

708m, 140gr, 2860f/s - mxv = 400k units of momentum

So about 5% difference = bugger all.

223, 55gr, 3240f/s - mxv = 178k units of momentum

Less than half.