Re: how do i break in 3 new rifles
I broke my 300 RSAUM Sendero in with 31 rounds, but used the last 9 of the box to shoot for kicks into a single group. I think using the IOSSO bore paste or JB's with Kroil will speed things up immensely. My barrel has a mirror finish now.
FWIW, my 270 Ruger has had around 200 rounds fired through it, but its accuracy sucks to be nice about it. The barrel has a couple tooling marks that are visible to the naked eye, well sort of. I have some of Tubb's FinalFinish to shoot through the gun. As this is my only .270 bore rifle, I plan on shooting all 50 bullets. If I had two rifles, I would shoot 25 in each as that seems to be all that is really "needed" but we shall see. I am loading some up for my Dad's 708 and 7RM, 25 for each. I can compare how they look before and after. I plan on shooting groups before and after the FinalFinish to compare how it shoots.