Anyone ever load 9mm luger with STR headstamp?
I use dozens of different range pickup brass with this caliber and don't have hardly any issues. But I picked up this STR brass last week and while inspecting and sorting I noticed that from the middle of the brass to the base, the internal diameter is .020 smaller than it is from there to the mouth of the brass.
I am trying to use up a pound of green dot that I have used for hundreds of 115g 9mm loads, problem is there is only one tenth of a grain difference in load data from minimum to maximum, 4.6 to 4.7, I always load them at 4.6g and never had any problems and they all shot and cycled well.
My concern is the I.D. of this strange brass, will I be ok to use my normal load since now the internal volume is less by how much I'm not sure? Is that .020 less diameter something to worry about, or am I just being OCD?
I use dozens of different range pickup brass with this caliber and don't have hardly any issues. But I picked up this STR brass last week and while inspecting and sorting I noticed that from the middle of the brass to the base, the internal diameter is .020 smaller than it is from there to the mouth of the brass.
I am trying to use up a pound of green dot that I have used for hundreds of 115g 9mm loads, problem is there is only one tenth of a grain difference in load data from minimum to maximum, 4.6 to 4.7, I always load them at 4.6g and never had any problems and they all shot and cycled well.
My concern is the I.D. of this strange brass, will I be ok to use my normal load since now the internal volume is less by how much I'm not sure? Is that .020 less diameter something to worry about, or am I just being OCD?