01-30-2016, 02:36 PM
pontoon Wrote:I read up on it more. It looks like longer mag lengths are up to 2.3 and the COAL allowed by the Grendel I barrel is 2.23, so you gain up to .07 with a certain mag choice. The massive FPS gains I read about were someone who must have been hand loading into the chamber. I suppose the .07 real world advantage of the Grendel II would offer a minimal FPS gain and probably more importantly potentially better accuracy for a hand loader who has .07 more to play with. I'm not a hand loader (yet) so my knowledge is very limited.
If your chamber only allows you to load to 2.23" COL, you've got a short chamber, or an older liberty barrel that lead to the Saturn Chamber cya exercise.
A (SAAMI) Grendel chamber should allow you to load to 2.26" at a minimum. Most will allow you to load to somewhere between 2.27" to 2.29".
These measurements are with the common 123gr bullets in mind.
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