01-24-2015, 10:59 PM
Nice rifle build Rick! .260AI is a great cartridge with more case capacity and good burn efficiency. You are running low pressure if the 123gr is going 2800fps with IMR4350. With regular .260 Rem loads, you're looking at 2950-2980fps max. Your added volume drops the pressure, and adds capacity.
I have noticed that Lapua .260 Rem. brass has less capacity than Remington, so the wall are thick. Yours might take you back up to normal .260 Rem case capacity published in most handbooks.
I have noticed that Lapua .260 Rem. brass has less capacity than Remington, so the wall are thick. Yours might take you back up to normal .260 Rem case capacity published in most handbooks.
NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com