No I have not. Didn't think of it. But I will look into it. Thanks for your quick replyWhat for of crimping are you doing?
If any, it should be a light taper crimp due to how the case headspaces.
Have you made any measurements in diameter before and after to determine where dimensions are off?
Thank you for this information. I needed that.Assuming you solved your issue but if you haven't, you need to set your taper crimp using your calipers. Forget all the talk about slight taper, straightening, eyeballing, etc. There are reference dimensions for your cartridge mouth and all you have to do is measure to make sure you are meeting them. A good taper crimp on 9mm will be about .375-.379 at the mouth of the casing, which is a few thou less than the SAAMI cartridge max and will provide positive feeding across brands of brass. Simply turn down your die until your mouth measures in that range for your mouth, lock your die, and move on. Remember different brands of brass have different thicknesses so you'll see variation due to spring back but your calipers and the SAAMI drawing are your best friend. If your mouth is in that range after crimp and you have a bulge beneath it then you have another issue with your setup.
The Lee FCD is the way to go with semi auto cartridges. Never had any chambering issues using them.
Assuming you solved your issue but if you haven't, you need to set your taper crimp using your calipers. Forget all the talk about slight taper, straightening, eyeballing, etc. There are reference dimensions for your cartridge mouth and all you have to do is measure to make sure you are meeting them. A good taper crimp on 9mm will be about .375-.379 at the mouth of the casing, which is a few thou less than the SAAMI cartridge max and will provide positive feeding across brands of brass. Simply turn down your die until your mouth measures in that range for your mouth, lock your die, and move on. Remember different brands of brass have different thicknesses so you'll see variation due to spring back but your calipers and the SAAMI drawing are your best friend. If your mouth is in that range after crimp and you have a bulge beneath it then you have another issue with your setup.
The Lee FCD is the way to go with semi auto cartridges. Never had any chambering issues using them.