Pistol Caliber Carbines

[Tennessee Beast]

Since pistol caliber carbines (PCC) are now allowed to "shoot for score", have you shot a Rifleman score (or seen anyone shoot a Rifleman score) with one?  What caliber?  Any issues with scoring or having to replace the target backer more often?  I have the parts for a 45acp PCC and want to have realistic expectations.  Basically, is it the cartridge or shooter that is the limiting factor?  As a scientist, I am going to try it either way. If I can't do it, it is safe to assume that it is the equipment/cartridge. 

[pennys dad]

Regarding backers only.
I run NRA defensive pistol and pistol 101 classes every weekend.
I change cardboard backers every two or three months.
I just take a large paper target and staple it on backwards so only the blank side is seen.
Usually by the time I toss a backer the middle and top are blown out and I have several layers of targets over it.

[Timber Wolf]

Have not seen it yet but would like to try with my 9mm AR.  Once I put a better sighting system it though.

[Paladin223]

From personal experience, using a PCC should be no problem.  I used a Ruger PCC 9mm with S&W mags, Vortex 1-6X24 Strike Eagle, and all the M*CARBO
upgrades available.  Tho' the AQT I shot was not official, each course of fire was timed with training in between each.  The rifle scored a 221 that time.  A bum shoulder precluded any further use that day.  So those 40 rounds plus 10 used to sight-in the scope are all that have ever gone through that rifle.
For recoil sensitive me, the blowback recoil was a bit too much that day.  Hopefully next year will provide the official proof. 
In any case, I think the PCC would a viable centerfire alternative.  May even be good for 100 or 200 yard KD event.  See you all on the range. 

[Gus]

I have a 9mm upper for my AR.  I haven't tried shooting an AQT with it yet.  should be fun though.

[Eagle Keeper]

Should be plenty accurate. If it's a blowback design it has two recoils one from the round going off and one from the buffer bottoming out. It's only a problem when you try to run it really fast. If you run it with a silencer 45acp makes an impressive thud at 150yds.

[Charles McKinley]

I know my brothers Rugger PCC 9mm is bullet weight sensitive.  115 gr. are about 6-8 moa, 124 gr. are 5-6 moa, 147 gr. stack on top of each other.  This was at 25m.

[Charles McKinley]

The Ruger functions well with all the bullet weights it is just the accuracy is much better with the heavier bullets.  It has shown this across brands and bullet types, fmj or HP.

[Fulcrum]

I know my brothers Rugger PCC 9mm is bullet weight sensitive.  115 gr. are about 6-8 moa, 124 gr. are 5-6 moa, 147 gr. stack on top of each other.  This was at 25m.

I know this is an old thread, but I thought I would still reply. Do you know what the reason is for the heavier bullets being so much more accurate? That seems like a very dramatic difference. I'm going have to check this out in my own Ruger PC Carbine 9mm. I don't shoot this gun a lot, and haven't really done any side-by-side comparison of ammo. Now I'm curious.

[Charles McKinley]

No I don't know why.  I will look for the twist rate and ask Yates his thoughts on it.  He works the math side on this stuff.  I just shoot and take pictures.

[Smallbore]

I have a first gen Ruger PC9 and a Marlin Camp 9, both are very accurate, and very forgiving of bullet weight, whichever manufacturer you decide to feed them. The downside is that the triggers are crazy heavy, especially the Ruger, probably in the 8lb range.
It was designed to be a police duty carbine that used the same magazines as a Ruger P85, P89, or P95.
Pretty exhausting on the finger after a while.

[Fulcrum]

No I don't know why.  I will look for the twist rate and ask Yates his thoughts on it.  He works the math side on this stuff.  I just shoot and take pictures.

Thanks for replying. That's a pretty interesting result in the picture! A very dramatic difference. I'm going to have the get mine out and give it a try.

[Fulcrum]

Duplicate post deleted.

[Fulcrum]

I have a first gen Ruger PC9 and a Marlin Camp 9, both are very accurate, and very forgiving of bullet weight, whichever manufacturer you decide to feed them. The downside is that the triggers are crazy heavy, especially the Ruger, probably in the 8lb range.
It was designed to be a police duty carbine that used the same magazines as a Ruger P85, P89, or P95.
Pretty exhausting on the finger after a while.

I have a newer model Ruger PC Carbine. They must have improved the trigger. I've never measured it, but it seems about the same pull weight as a standard 10/22 factory trigger. It's not the best, but not bad.

[Fulcrum]

No I don't know why.  I will look for the twist rate and ask Yates his thoughts on it.  He works the math side on this stuff.  I just shoot and take pictures.

Is your brother's Ruger the older PC9 police carbine model or the newer redesigned PC Carbine 9mm with the takedown feature. Mine is the newer one with the takedown feature. I used a takedown 10/22 at an Appleseed event, and it did not work well under sling tension, but the PC Carbine seems to lock up a lot tighter. Do think it would be an issue? Did your brother shoot using a sling or a different method?

Sorry for hitting you with all of these questions on an old thread, but you seem like the only person who responded with experience with this gun! Thanks.

[Charles McKinley]

Hi Fulcrum,

It is an early take down model.  July of 2019 or slightly earlier would be the purchase date.

I was the nut behind the butt slung up in prone.  Sling tension hasn't been an issue.

Even with the 22 version score can be achieved.  The lock up nut is the key.  The looser it is the bigger the groups.  I set up all take downs by tightening the nut until it won't close and back it off a click at a time until it can lock up.  If loose to start they can loosen over the course of the day and have really terrible groups.  It is the first thing I check if I see a take down on the line.

I dislike the blowback recoil.  I'm partial to 300BO in an AR platform.

I don't mind answering questions.  Ask away.  We have ran it suppressed it works but is very long with the can I have.

[Fulcrum]

Hi Fulcrum,

It is an early take down model.  July of 2019 or slightly earlier would be the purchase date.

I was the nut behind the butt slung up in prone.  Sling tension hasn't been an issue.

Even with the 22 version score can be achieved.  The lock up nut is the key.  The looser it is the bigger the groups.  I set up all take downs by tightening the nut until it won't close and back it off a click at a time until it can lock up.  If loose to start they can loosen over the course of the day and have really terrible groups.  It is the first thing I check if I see a take down on the line.

I dislike the blowback recoil.  I'm partial to 300BO in an AR platform.

I don't mind answering questions.  Ask away.  We have ran it suppressed it works but is very long with the can I have.

Thanks. I might have to set up the PC Carbine and try it out at the next event just to see how it performs. At this point, I still have a lot to learn with the new 10/22 I bought after the difficult time I had with the takedown.