300 whisper vs 300/221

[Garrett]

Originally Posted by Hail Satin

Hello Garrett

How old is your noveske 300/221? I have one that john built back in
2003 and shoots fantastic.

Mine also has the "tight" chamber as well.

Mine is from the recent batch a year or so ago. It's not the tight chamber. It was the brass. I had measured it and it was thicker than all of my other brass.

I've since moved and all my reloading stuff is still boxed up. Otherwise, I'd try to dig out some of these and see which headstamp it was.