I have a Savage 12fvss in 22-250 caliber, with a 26" 1 in 12 twist barrell. I have been reloading rounds for this rifle in 55 grain hornady v-max from 34 to 39 grain of powder using H-280 or IMR 4064. Today I loaded 9 rounds of 50 grain v-max using 36, 35 and 34 grain of IMR 4064. The 36 grain rounds hit to the right if POA by 1/2" and were 1" apart. The 35 grain rounds hit 1/4 " to the left and were close enough to cover with a dime. These rounds were shot at a target 100 yards away. The 34 grain were used to kill a coyote approximately 250 yards away from where I had taken the shot.
After returning to the reloading bench, I found the cases were measuring 1.912 to 1.917. I chambered a loose cased round and found the length of my chamber and shortened it .020. It was this set up that shot the best group in this rifle. My question, can I go ahead and shoot the longer cases without damage to the rifle or should I resize the case and and adjust the bullet seating?