For quite a few people, obviously.It's been a slow day.
For quite a few people, obviously.It's been a slow day.
is actually easy to test. Get some plasti-gauge, put it on the shoulder so that it does deform enough to take a measure. Then fire that case with a primer only and re-measure.
That was how I determined how much to bump the shoulder back before I had case gauges. It works. Not a single time I have tried it was there any change at all in the measurement.
I used the same method when I would have a "stuck case" that had case gauged properly in my match AR15 and found that yes, the crimped bullet was pulling the shoulder into contact at the shoulder, so I bumped back the shoulders a little further to fix the problem.
With its impact momentum p reduced by 24-percent, the low-mass aftermarket striker will not be as likely
to set back the case shoulders (thereby increasing the cartridge headspace for rimless-style rifle cartridges
that headspace on the annealed brass of their shoulders) or to reseat a jam-seated bullet deeper into the
thinned case neck in firing a benchrest competition rifle.
44AMP,
Rimmed H&H cases didn't feed reliably from box magazines, belted ones did.
H&H wanted something they could count on for positive headspace that didn't have the feeding complications of a regular rimmed case.
if you're trying to keep your bullet off the lands exactly .005 through out the ignition process . The length of your case head space , length from shoulder datum to bullet ogive closet to baring surface and the ability of the firing pin or loading of the cartridge to set the shoulder back can all effect where the ogive of the bullet is in relation to the lands upon ignition .
While all this may be true, it all happens AFTER you have loaded ammunition. And so has no bearing on the overall loaded length of the round. SO, as far as I can see, the whole matter of how the round headspaces, and what happens when the firing pin falls is something after assembling the round and is a separate matter from differences in COL due to bullet seating and variances in bullet length.
Sure, its important stuff, but I don't see how it applies to the OP's question.
Then what do you think the case stops against?That does not happen either. And that one does not even sound good.
I'm asking for your opinion on what stops the case.No "think" about it Bart.
Get you some plasti-gauge and do your tests. Like I said, it is not hard to do.
No it doesn't , not even close I can't believe you even said it . What you say may be true with factory ammo but we're not in the factory ammo sub forum .
The case will be driven forward hard against the chamber shoulder.If you neck size how much would your firing pin push the case forward? The cases have been annealed and ALWAYS measure to the same length after firing. This may be a little bit off OP, but.
Of course not.Are you calling the distance from the bolt face to case head "head space?"