Quote:
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Originally Posted by JFettig
After you trim your brass to 1.365 then form them, how long do they come out? I cut my initial batches long and didn't measure before and after so I don't know how long it turns out but I plan on cutting down a bunch more and I want to cut them so that I have to do minimal trimming afterwards.
Thanks,
Jon
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Jon,
If you look at the accompanying photos you will see that the trimmed .223 case that looks like a rimless 357 is Oh so slightly shorter than the final form case. When you form the shoulder the case grows about 0.010. So here are the dimensions that I use.
I trim the cases to 1.357 ±0.002. I then sizes them and form the shoulder. The cases increase in length to 1.366 ±0.001. They do not require any re-trimming.
320pf