I ordered a bunch of once fired and cleaned brass from Top Brass online to reload 9mm with. I noticed while checking some of the brass out that a couple pieces seemed to have a thicker wall about half way down the case towards the base. The head stamp on this brass said "IMT".
My question is, do I need to sort through the brass and throw all these out? Will the thicker lower case wall cause additional pressure due to decreased case volume(assuming same charge weight)? What is the purpose of a case like this? Should I just use them and not exceed mid-level loading data?
I know the picture isn't very good, but a cellphone camera is all I have right now.
Thanks for any help you can provide.
My question is, do I need to sort through the brass and throw all these out? Will the thicker lower case wall cause additional pressure due to decreased case volume(assuming same charge weight)? What is the purpose of a case like this? Should I just use them and not exceed mid-level loading data?
I know the picture isn't very good, but a cellphone camera is all I have right now.
Thanks for any help you can provide.