12-14-2014, 02:54 AM
BjornF16 Wrote:Gene, IIRC, a certain company was marketing their "variant" with a short throat as a "design" feature that resulted in higher velocities (or at least their mouthpiece was representing them in that fashion).
That tells me it isn't a mistake...
Then there is the Type 1 vs Type 2...I can't even keep that straight.
My POINT was: Getting a SAAMI Grendel is a known quantity; whereas the variants aren't necessarily known (or consistent) quantities.
Bjorn:
OK -- I understand why the upset.
Remember that before Alexander settled on his compound throat, he was using the conventional throat everyone here is criticizing. He thought it didn't perform adequately with a wide variety of bullet ogives so went to a compound throat that he claims works better with a wide variety of ogives. He never said the conventional design was unsafe. Only that it didn't meet his requirement for universality.
My hypothesis is that if (IF) the compound throat works as stated, there comes a time in the life of the barrel where it no longer works as stated due to wear. And this happens sooner than people think.
Short throating doesn't necessarily mean dangerous -- to a point. I will say that if a company cuts the rifling to minimal or below minimal dimensions, a person is asking for trouble.
The short throated barrels I had to get reamed were so short that the shank of the bullet had to be seated totally inside the neck for it to chamber. That wasn't by design but due to poor quality control and workmanship.
Who marketed a short throat Grendel?
LR1955