Bolivar-
When you obtain some more of the factory ammo that shoots well in your rifle, be sure to measure the bullet diameter. I should have suggested this in my note above.
--Bob
Shoots well is a relative term. It functioned fine, left no sooting on the brass but grouped about 4-5 inches for 5 shots. I am hoping to get half this size with this rifle.
I did measure the bullet just above the case mouth before firing. 0.311 inches which is what I expected it to be. The bullets I have been having trying so far have been this size and larger (up to 0.312 inch)