Ruger PC Carbine Accuracy

As far as reliability, I shot my PC Carbine for 16 stages of Steel Challenge on the same day. With optic in the morning, iron sights in the afternoon. Without misses that is 390 rounds, so for me 400+ rounds. No cleaning in between. No stoppages. Ran 124 grain S&B FMJ.

Liked the first one so much I have two now.

 

Doesn’t seem to matter what I use other than some pretty hot reloads of mine. I’ve changed extractor and didn’t make much difference. I’ve used 115, 124 and 147 grain Federal, American Eagle, Winchester, some commercial reloads and my own. It gets very dirty from blow back after 50 or so rounds and the cases are way more dirtier than from any 9mm handgun I have.
It starts to get stove pipes and the bolt gets jammed about halfway back. Had to drop trigger to get it to function again.
I’m not in the states so sending to Ruger is out and to send it to the place that does Ruger warranty up here is a joke.
I did find this video and when I get time I’m going to check out mine as it appears to be doing the same thing.
I use Ruger magazines and do not have any Glock magazines.





I can shoot 500 plus rounds from any of my 10-22 rifles and they are cleaner than the PPC after 50 or so.

 

Before you start hacking at the bolt have you tried replacing the recoil spring?
Tandemkross has em for 10$

 

Looks to be a fair bit more accurate than my semiauto closed bolt sten gun.

 

I’m not doing any hacking. Yes I have changed extractor, pins, springs and buffer with Mcarbo and no difference. When I get home tomorrow I’m going to check the bolt as he did in the video as it sure seems that mine is doing the same thing.

 

I meant no offense when I said hacking . . . before making permanent modifications/fixes to my firearms I usually, just as you did, try all the non solutions that don't involve taking a dremel to the firearm first

Please keep us updated as I'm curious to know if his solution works for you. I actually watched that video prior to buying my PCC as part of my research into it and I considered the modification to be small enough that I could do it on my own but also the issue seemed rare enough that I went ahead and pulled the trigger so to speak.

I purchased mine around the beginning of the summer and have yet to encounter any of the issues other people have. All my pins are tight, my extractor seems fine, the spring has enough power, the aftermarket buffer seems to be doing its job, the pins that hold the bolt face seem strong enough. When did you purchase yours and what model number was it?

 

More accurate than my telescoping bolt Beretta CX4, too.

 

No offence taken.

 

Good shooting !

Just an FYI... here is 129 OEM Factory loads chrono data from my 16" 9mm Colt Pattern PCC.

https://www.ar15.com/forums/ar-15/1...129-OEM-rds-52-more-added-May-7th-/16-712312/

 

My Ruger PC carbine is the most reliable 9mm I have ever owned.

30+ years ago I loaded my first batch of 9mm starting at the books starting load. I got a little excited and reloaded several hundred of them before taking them out to try them. Yep, sure enough, maybe 1 in 5 would completely work the action. 4 of 5 would not push the slide on my Beretta 92 INOX back far enough. With several hundred of the too wimpy reloads and 9mm components being cheap I just packed them away. 25 years later I purchased my Ruger PC carbine and decided to try the old loads. Of the several hundred cases I emptied there were only 2 that caused FTF in the Ruger PC carbine. I have about ten 9mm pistols and none of them were anywhere near reliable with the wimpy loads. I was impressed with how well the Ruger handled them. Unlike the video posted above I only reload jacketed 9mm bullets and always (back to my very first overly jubilant batch) put a full factory crimp on them.

The video sounds like the problem the guy was having was more due to the very loose crimp he was using on lead bullets rather than the Ruger PC carbine itself. His solution of rounding the back of the bolt face sounds very safe and should not make any difference to normal functioning other than fixing his particular problem with his particular reloads. Good video BTW. He explained his issue very well and clearly stated that the problem he was fixing was a result of loose crimps on his reloads. I could see rounding over the back of the bolt face like he shows as a preventative measure but it doesn't sound like it would be critical to anyone that uses fully crimped ammo.

P.S. I use Glock OEM magazines.

 

Just signing on to this thread. I picked up a PC9 last week. Haven't shot it yet.

 

Congratulations Scooter! I bet you are going to enjoy that rifle. Mine is a family favorite and has been since day one. I run Glock magazines in mine and it has been flawless with both factory Glock magazines and Magpul magazines. Keep us posted once you shoot it.

 

Took mine apart this morning and checked as in the video. Cases were catching on the rear of the bolt face. There really wasn’t much of a bevel on it and was rough. Took a file and put a more pronounced one on it then polished bottom of it with a felt wheel and Dremel.
It is much smoother when bolt comes back over case lip. Hoping to get to range to try but youngest daughter getting married this week so not sure when I will be able to try it.
Not saying this is going to solve my issue but hope so as so far not too happy with it.

 

Pistol Caliber Carbines are very misunderstood. Every time I take mine to the range, people tell me "you can't hit anything at distance with a pistol round" and i show them how I continously ring the metal gong at 100 yards with iron sights!
I then explain to them that the 16.5 inch barrel gains more velocity and more power from the 9mm round.(just like in this marlin camp 9 ad)

 

If multiple red dots were cashew/kidney shaped, have you considered that it could be your vision?

 

I've got 3 of the TRS25s. When my eyeglass prescription is good, the dots are round and focused. Once my prescription goes a bit off, the dot goes a bit off too.

A good test for dot roundness is to try and take a photo of it and look at the photo. Kinda hard to do as the dot focuses further than the sight body by some 30 feet or more or less.

 

Here is a test i did with my Hi-pont carbines at 50 yards. Been wanting to redo it with slower powder loads. I'll get to it one of these days,

 

I found the Ruger to be very accurate, very reliable, and fairly priced. None of those features make up for the ugly.

 

That Marlin is a nice looking rifle.

 

Checking the data from Spoton from Nikon, the trajectory of a 9mm is comparable to a 22 LR. BC and velocity are similar, but the 9mm packs way more punch.

BC from 0.125 to 0.133 CCI MiniMags
BC about 0.125-0.135 for 115 grain 9mm FMJ. The 22s are moving a bit faster maybe but the rifle barrel may push the 9mm above the 22. In any case, shoot a 22 at 100 yards from a 50 yard zero and drop will be close.

 

It is a traditional looking wood stocked beauty!
A great companion gun if you have a 1911 ....the Camp 45 it takes 1911 45acp mags. The Camp 9mm takes ....S&W 5900/6900 series mags. The mags are plentiful still today.
Sadly ,Marlin stopped making them in 1999 and used ones are pricey.

 

Long time PCC fan; never had the current generation Ruger, but, having had one years ago, acquired another of the earlier version. Have some others PCCs as well; the Ruger has an M1 Carbine vibe, as well as a 10-22 on steroids.
Yeah, for the size and weight, a rifle caliber is possible. But it remains cheaper to feed than a centerfire rifle of any caliber, and it has enough reach for self defense for an armed civilian.
Using the aperture sights (one gripe with the newer version; the aperture sight is forward on the barrel, rather than back on the receiver), don't have any trouble whacking an 85 yard clanger, off my hind legs.
Moon

 

That was a concern when I looked at them. Then I wondered which is better, a large aperture that far forward but on the same piece as the front sight or a smaller aperture further back but on a separate section on a takedown rifle.

 

This one is just over 6 pounds.

Pure awesomeness.

https://ruger.com/products/pcCarbine/specSheets/19130.html

 

Wait we are supposed to clean these things?