6.8 SPC primer question

[chrisf8657]

Hi guys.

6.8 SPC brass is a f'in b*tch to find, I have only about 50. Silver State is selling them at a inflated but OK price, but their cases use Small Rifle while my R-P cases use Large Rifle.

I honestly dont care, but the issue I have is will this affect velocity?
I have loads pushing 2580 with LR, but changing to SR bothers me.

Thoughts and suggestions appreciated.

Thanks