John I realize that this does not answer your question concerning a good load for your rifle, but a few years back I experienced an accuracy issue with my 300 wsm. Normally this rifle shot a clover leaf 3 shot group at 100 yards.
It went to shooting a 2+ inch group at best.
I checked all of the usual problem areas and did not find anything.
I cleaned the bore good enough I thought and still no change.
I took it to a friend and gunsmith, and asked him to put a second set of eyes on my rifle.
He called me a week later and asked when I cleaned the rifle last. I told him just recently.
He then told me there was a lot of copper fouling and he had cleaned it out. I as very surprised to hear this.
I said I would be anxious to see if it made any difference. His remark was oh it did. I took it to the ranch and shot it this weekend and it’s shooting under an inch.
Dang if he wasn’t right. It was back to a fantastic shooting rifle once again.
This may not apply to your rifle, but in my case I leaned a valuable lesson on using a good copper solvent and taking the time to clean it properly.
|