.300 Win Mag velocity concerns

[ar15barrels]

Eeeeewwwwwww.

Blood is a natural lubricant.

[LynnJr]

Wouldn't that be a "Lands Chaser" or do J-Cats barrels only have one?

My reading comprehension is fine it's your lack of knowledge that makes you think primers have no affect.
Since you shoot 99% of your loads across a chronograph those that actually know what happens with a primer are lolroflmao.

[J-cat]

I never said primers don’t have an effect, you bullet seater out too farrer.

[LynnJr]

Tell us what affect YOU SEE inquiring minds want to know what exactly that is.

[J-cat]

Please read and understand post #10.

*Your suggestion to foul up the bore is good too.