223 /556 first timer

[smoothy8500]

Problem with countersink is you might drill your primer hole wider. The burstfireguns reamer can't cut too deeply.

True, you have to pay attention. Burstfire, Hornady, Lyman, etc, are all good choices that can screw into a threaded adapter to go in the drill/driver.

[browndude]

Do you have a rocket ship deburring tool? A quarter turn with mild pressure will remove the crimp. Designed to cut, so probably more efficient than repurposing screwdriver bits. Plus the tool makes sure you don't get interference at the case mouth after trimming (seating bullets, and chambering. Using the tool for what it was designed for - sacrilege, I know.)

The LC stuff from 2015-2020 was pretty much analogous to Federal brass (may be differences between NATO and commercial lines though.) Winchester took over LC armory in 2020.

Side note: the dots and circles on the LC headstamp are a code showing (depending on who you talk to) the date it was made, the machine it was made on, or the dies used.

Yes have a small one . It works better than the ryobi #2 Phillips bits I bought.

[browndude]

Shot 5rds of each
H335, 25gr
Alliant match, 24gr
Accurate 2495, 24gr
Without a chrony they all cracked same as store bought ammo
No failures at all.
Next purchase the wife won't know aboot is that chrony with Bluetooth.