12-11-2013, 05:20 AM
BjornF16 Wrote:I'm not sure I would want a SAAMI Grendel chamber...maybe a 264 LBC or the Pac-Nor "Grendel Match" (which has a .295 neck and is what I have in my bolt Grendel).Take a close look at the top paragraph of page 10 in Volume 1 of the 6.5 Grendel Reloading Handbook. The compound throat was inspired by some of the most accurate bolt action service rifles.
The .300 neck does indeed ease feeding for auto rifles. It also helps accommodate challenges when steel case ammunition (we hope soon!) is used.
Now, we ask ourselves, "How is it that the Grendel routinely delivers superb accuracy with such a sloppy throat?"
[INDENT]ANSWER: The compound throat helps ensure precise centering of the bullet without requiring that the bullet touch the lands. The centering is more precise than can be achieved with even the tightest throat that will release the bullet on firing.[/INDENT]
The sloppy throat has no effect on accuracy. At the same time, as LRRPF52 points out, it is probably not needed for reliability in a bolt gun.