Yota1986
Yota1986
1 post
Joined April 2014

fails to prime

  My SDB is failing to prime about 1 out of 10 shells. I'm loading 45ACP. Just wondering if someone has had this same problem and could help me out?

 

                                                                              BMC

g26westgate
g26westgate
21 posts
Joined February 2014

RE: fails to prime

Are you saying the primers are not going out of the primer feed? Might just be a tight plastic at the end of the primer feed
Joe
Joe
117 posts
Joined September 2007

RE: fails to prime

make sure you're using the large primer magazine tube, it's the one with the red tip. Also, check that your primer punch and primer cup are also for the large primers. The .45ACP is considered a large pistol primer, whereas the 9mm, .357, or .38 Special is a small pistol primer.
Hope this helps. Happy loading!
divejj
divejj
131 posts
Joined December 2012

RE: fails to prime

Check the size of the primer pocket on the brass. There is some small primer .45's used in law enforcement and if this is range brass, you may have some mixed in. I have a couple thousand rounds of this and I run a batch of small primer .45 every now and then, to use it up. I also give it to my brother in law...I know I won't see it again if he has it. He says he'll pick up his brass and give it back to me, but in all the years we've been related, this hasn't happened. This can be problematic in other areas as well. If some sneaks into the loading process, a new large primer won't seat. That primer may be slightly damaged from trying to seat it, and  if you reuse it in a primer tube, it tends to get stuck. I've ruined at least one tube this way. I posted on this forum about that a while ago... 

Happy loading,

jj

bob watts
bob watts
4 posts
Joined February 2014

RE: fails to prime

Also having the same problem with my SD and with 45acp  hoping someone could help to
dillon
Administrator
dillon
3,021 posts
Joined July 2007

RE: fails to prime

One out of 10 is hard to pin down.  Most mechanical issues would be at least one in 4 (number of stations)

Suggest replacing the magazine orifice on primer mag tube. They go bad.  Also have a look at the brass, a lot of crimped and/or small primed 45acp brass out there.