I have a question because I am kinda set back. I have been reloading quite some time and I have never seen this. I have once fired hornady brass, in 45-70 ready to trim, but when I measured it it was .050 shorter than trim length. At this point I have measured about 15 random cases and all are with in about .003 of each other. I even measured the loaded stuff and got the same which tells me the factory ammo was trimmed to short. So my question is do I have a lot of useless brass or can it be salvaged?
It worked the first time, as a factory load, so there's no reason it won't work just fine again. Use it as is, and be thankful you don't need to trim the brass.
I hate trimming brass.
A bit short is a non issue to me, .050" is not gonna heart a thing. I don't want it long where they could extend beyond the chamber and restrict the bullet pull. Whatever the length I want my batch all the same so they crimp the same without adjusting the die for every case.