Ruger P95DC Misfire

[RiverCity.45]

I have a Ruger P95DC (9mm) that, up until now, has been reliable. I recently purchased some Federal American Eagle 9mm ammo (FMJ, 115 gr) and took it to the range. The gun fired the first couple of mags without a hitch, but then, in SA mode when I would pull the trigger...click! Wouldn't fire. But if I pulled the trigger again (DA mode), it would fire.

Took it home and gave it a good cleaning. Went back to the range and the same thing happened again. Fires 20-30 rounds without a problem, then won't fire in SA mode, but will in DA.

I suspect it may be the ammo. Any other ideas?

 

[rcmodel]

Take the barrel out and drop some rounds in the chamber.
See if it comes all the way back even with the back of the barrel hood.

If it doesn't, the ammo is too short and creating excess headspace.
So the firing pin can't reach it to get a good whack.

Otherwise, it could just be hard primers, but they would have to be very hard before a Ruger wouldn't set them off.

Bottom line:
If it works with everything else, it's just a bad batch of ammo.

rc

 

[fguffey]

I guess anything goes, a friend returned from the range with a box of Remington 30/06 ammo, 15 fired, 5 had 2 attempts at being fired in 2 different rifles, the first rifle made two attempts, that is at least 3 primer strikes on each unfired primer.

If the primer did not fire, stop, put the pistol down and think about it, with ear plugs and muffs there is a chance you did not hear it fire, without powder, the primer can drive the bullet out of the case and into the barrel 'somewhere'.

If you pull the trigger and the hammer falls and the primer does not fire, wait, then remove the unfired cartridge from the pistol and check for a primer strike, scary but the DC 'de-cock' will drop the hammer without harm to the primer, this would allow you to determine where to start, the cartridge or the pistol.

With the 5 Remington's that did not fire, I pulled the bullets, checked the components, removed the primers, installed the same primers back in the same case, chambered them in a M1917, pulled the trigger on all 5, one at a time, all five primers worked after all that abuse, there is nothing suspect about the primer strike on my M1917, I do not know about the rifles used in the first two attempts, given the opportunity I would have suggested Remington have an opportunity to examine the case after the first primer strike.

The shooter at the range had a new rifle and new ammo, he was blaming Remington.

F. Guffey