I am wondering why the same load shot out of two different rifles would produce different speeds? I had a 300 Win Mag Mcgowen match grade barrel that shot 73.5 grains of RL 25 with prep. Winchester brass and a Federal Match primer spitting 200 gr. SMK's at 2892 FPS. Three shot groups were a ragged hole at 200 yards on a good day.
Now I have a barrel made by Criterion "Match" same length same twist everything the same and it shoots that same load 150 FPS slower. The accuracy was a little less than my other barrel so I bumped it up a grain to reach the same node I was hitting on the other barrel and it did the trick.
My question is why is it so much slower? Is the barrel not of as good quality? I also noticed it fowels up way worse than any Shillen or Mcgowen match barrels I have or have had.
Just curious that's all
Now I have a barrel made by Criterion "Match" same length same twist everything the same and it shoots that same load 150 FPS slower. The accuracy was a little less than my other barrel so I bumped it up a grain to reach the same node I was hitting on the other barrel and it did the trick.
My question is why is it so much slower? Is the barrel not of as good quality? I also noticed it fowels up way worse than any Shillen or Mcgowen match barrels I have or have had.
Just curious that's all
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