Quote Originally Posted by mag44uk View Post
This is nominally 0.311 so 303 bullets would be the ones to use.
PPU or S&B or Sierra match kings.
n140 will be fine.
If I was only shooting at 300yds I would use lead bullets or plated.
I use plenty of lead bullets in my 303 with n140.
That's made my ears prick up!
What bullet are you using, and what charge weight?
Cast/swaged bullets are not something I've played with in the 303.