MY 30-06 is a solid 1.25-1.5" shooter after some tweaking. I put a belm spring in the lug for a stronger lockup and hammer spring and put in a 1x oversize pin. Before that it was a 3" gun. After the same springs on the 45 cal muzzleloader barrel I am shooting about 1.25" 3 shot groups at 100 at nearly 2400 Fps with a max load of bh209 and a 195 gr Barnes. Should do well on our muzzleloader opener tomorrow!
