Good Evening all.

I picked up a Ruger P91 DC .40 in like new condition a few weeks ago.

My dies arrived today and there was a warning from Lee in the instructions about firing reloads in Glocks and other pistols that have chambers that do not fully support the cartridge.

So my question is, does the P91 have a fully supported chamber?  From what I can see it does, but I'm not a gunsmith or an expert.

I'm starting with brand new brass.

Not my picture, random image from the internets.


I doubt your Ruger will have any issues.
A friend of mine accidentally loaded some 9mm a few years ago that he figured was some where around +P+++++++() ,he called Ruger to ask them if it would be safe to shoot out of his SR9c, Ruger representative stated as long as it's a 9mm projectile "it will be fine".

If you could fit a 308 in a Ruger p series chamber it worked be safe to shoot.