Ruger Forum banner

Primer Pockets..

3497 Views 18 Replies 15 Participants Last post by  Gutpile Charlie
Do any of you guys take the time to clean the primer pockets on your reload brass?[?][}:)][?] I reload nothing but.38/.357 & .45s. [^] I don't fool with them myself and I have never had one fail to go off. [:eek:)] Two times I have failed:( to Put powder in the shell, but the primer allways lit up.[:eek:)]
Status
Not open for further replies.
1 - 2 of 19 Posts
Though it doesn't hurt a thing to clean primer pockets, it really isn't necessary and is mostly just a waste of time. If primer crud builds up to a point where you can't seat a new primer, there is obviously a problem that cleaning isn't going to cure.

The flash hole in the primer pocket has two functions. The most obvious is the flash path to ignite the powder. The second function is to make a "valve" to restrict pressure on the primer. Nearly all US made rifle and pistol brass have a 5/64" flash hole. If you do the math, only a small amount of pressure is allowed to blow back into the primer pocket. If you get too much crud in the primer pocket, likely the flash hole has been enlarged. That case should be thrown away. It' OK to "uniform" flash holes with a 5/64" drill bit but never enlarge them, in fact when you inspect your cases, toss any with flash holes larger than normal.
See less See more
creepyrat, The new cases with non-toxic primers do have larger flash holes. In a low pressure 45 ACP it should not be a problem with a conventional primer. Throw the 9mm and 40 S&Ws away. They run about 35,000 psi and are not considered safe for reloading by either Winchester or Federal. There are rumors that non-toxic primers may be sold for reloading in the future.
1 - 2 of 19 Posts
Status
Not open for further replies.
Top