the old grind
Elite Member
- Joined
- Jul 21, 2012
- Messages
- 4,412
- Location
- Mid-Michigan
- Tractor
- NH T-1520 HST, NH TC33DA HST, Case DX26 HST, .Terramite T5C, . NH L785
I will crush a primer now and then on mine as well. I got so I always look at the primer bar as it comes back out to make sure the primer is sitting correctly in the cup. Being smooth on the handle certainly helps.
On pistol brass I use a four cutter counter sink bit to take care of crimped primers. I am thinking about getting a swage for my ,223/5.56 range brass as a lot of it is military brass. Haven't started reloading those yet but getting closer.
I bought 'reloaded' Ammo whose primer crimps had been removed by chamfering. (UltraMax .223 in LC brass, IIRC) I was concerned about pri-pockets having lower sides, and whether they would firmly hold successive primers securely. When cases get near the end of their useful life the tell is often that the case heads/pri-pockets will stretch just enuf not to hold primers firmly. This becomes a problem with semi-autos if primers fall out on extraction and get into the action.
I set up a single stage press with Lee's Ram Prime and found that my RCBS trigger pull scale registered within its normal range at the end of the handle when seating. New, uncrimped brass took 6-8 lbs force, and chamfered pull-downs more in the 4-5 lb range. A mil crimp need only be removed once, but I'm one that fusses a bit much over the details of case uniformity. Consistent seating pressure is one way I monitor the condition of a batch of brass.
Make what you will of all that, but I came away wanting to remove the crimp another way. There are pocket reamers that will scour the excess, but one has to be sure proper pocket depth isn't fudged when setting them up. A swaging tool, not everyone's cup of tea btw, has become my choice for tweaking mil pockets for predictable dimensions when seating.
btw: a big +1 on cleaning brass 'wet' with the SS pins. It's fast & quiet, the mix is cheap, there's no dust, and nothing gets 'icky' if the setup is shelved for long periods, even with the pins left wet. All of my vibrating and ultrasonic cleaning gear has been gathering dust since I made the switch, and any brass or copper items can be shined up with this gear in 2 lb batches. (I go by weight vs count, and storage-tarnished plumbing fittings are easily refreshed for that new look.)