nettlle
Contributing Member
What I can not understand is why it won't chamber after the second pass through the taper crimp die. Hopefully the case gauge will help.
That depends on where the brass is rubbing the chamber wall.What I can not understand is why it won't chamber after the second pass through the taper crimp die. Hopefully the case gauge will help.
Taper "crimps" only remove the bell, that's all they are designed to do, if an unhealthy amount of taper "crimp" "fixes" a chambering issue, there is generally a problem that can be fixed.What I can not understand is why it won't chamber after the second pass through the taper crimp die. Hopefully the case gauge will help.
SAAMI max at the base of a 9mm cartridge is .391, which is what a Wilson gage is cut for, so you're spot on with your observations. Your EMP chamber at .392” is just slightly slightly over SAAMI minimum for a 9mm chamber, so your choice of a Wilson gage is a smart one. The Dillon gage, and possibly others, will pass rounds that wouldn’t plunk in your EMP. I know you already know all of this, but it might help others understand the difference in gages. Besides, it makes me feel smart to write it down.Mine will accept a case that is .391 at the base and have it fall out, .3915 needs a tiny bit of help to come out? .392 is stuck, which matches that EMP chamber, .392 can be iffy, .393 gets jammed up. So they worked for me.
If it is really important to you to have all your cases fully chamber, you could buy a RollsizerWhat I can not understand is why it won't chamber after the second pass through the taper crimp die.
I'm kinda surprised case guages are not blued to help protect them. I never had the rust issue in San Diego, that I have here in Memphis.I've got Wilson case gauges and EGW case gages and one other .... read ones, name escapes me qt the moment.
Anyways, I just seem to prefer the EGW case gages.
Anyone else had issues with their Wilson case gauges rusting and pitting?
Way to many precision machinist tools are blued for that to be reasonable. Cost is always a factor and most likely the reason. Wilson is no where near the size of Lyman or hornady which cost would be minimal.They may not be blued for a number of reasons. It may change the final dimensions of the guage, and it would add to the cost.
chris
What I can not understand is why it won't chamber after the second pass through the taper crimp die. Hopefully the case gauge will help.
I thought lyman was the gold standard in guages?