I've got a 28" 9 twist Kreiger on my long range rifle. 7 mag. I've got about 1K rounds of Berger 180 gr hunting VLD's through it. They've been doing a fine job on Marmots out to the 1400 yard mark, but have been looking at the big .338's for higher BC bullets.
With the introduction of the 195's I'm planning on just going to a bigger 7mm case instead. Still have about 600 180's left, so will be looking at another barrel after that.
This gun was built specifically for long range marmots and most of my hunting is at 12000'.
Will look forward to seeing everyone's results with this bullet. You guys will provide research for me. Thanks in advance.