Originally Posted By: BangFlopI don’t understand the Lil Crow, it trims off the shoulder versus COAL. How does that work if using 2 different rifles of the same caliber??
Case length should be somewhere between minimum and maximum. Since I trim every time (it's super easy) I set the length at or near maximum length.
If you have two rifles in the same caliber, say 223, that likely have slightly different chambers, and use the same FL sizing die, then the shoulders will be in the same place after FL sizing and the trimmed length will be the same. If you're using seperate sizing dies, set the trimmer so that it trims both cases to acceptable lengths at the same setting.
It's not as complicated nor as critical as you're thinking. In my understanding, I simply trim every time for case consistency. High end benchrest type shooters with custom chambers etc don't trim because they have custom tight tolerance dies that were cut with the same reamer as their chamber and as a result their cases don't grow. The factory guns you describe in this post will require you to trim the brass cases at some point due to sloppy factory chambers that cause case growth.
When benchrest shooters or high end types describe specialized handloading techniques that don't apply to the basic handloader, it's like a Nascar mechanic saying his engine maintenance techniques don't apply to Toyota Prius owners. Because they don't apply. And monster truck drivers advice on tires and suspension don't apply to your F150.
