Yes Tom you were extremely helpful with your experience and advice.
You are the one that suggested the IMR 7828 which I later confirmed as a quite popular powder for the 264.
Your 65 gr load is suspect of being a bit warm for my rifle though.
The 60 gr loads were typical accuracy for what I would see in remington or winchester factory loads. 1.5" to 2" groups.
The 62.5" load shot nice. We shot a 3/4" group which was high so I dialed the scope to bring the point of impact down. I repeated and the 2nd group got a little bigger on me but still much improved over what I had seen with factory loads.
The 1st shot with a 65 gr load was difficult to extract with the bolt. The primer had a shiny spot on it as well, and some extraction drag marks above the belt on the case.
I had 5 of that load left to shoot, I decided to shoot them but I put a light film of oil on the cases. I know that's not advisable but I wanted to shoot them out. The other 5 extracted effortless with no signs of overpressure so that 1st load may have been a bit of a fluke. My most likely contributor to that shiny primer was that I was having a hard time seating the remington 9 1/2M primers deep enough. I suspect I was a bit proud of the base with that primer.
Even still I think I will load some up at 64 gr of powder this week and head to the range to re-zero the rifle. I suspect I may have to bring point of impact up close to an inch when I drop a grain.
The 65 grain load shot really well though, 3/4" group with that load as well.
My next opportunity off a bench I may try a 5 shot group.
The big thing is I have gained a lot of confidence in the rifle.
It had been a consistent 1.5" - 2" rifle with factory ammo. And I was frustrated with not being able to achieve MOA consistently.
