Just right carbine Good or bad ?

lone ranger

lone ranger

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I am looking at buying the latest edition of the JR carbine in 9mm. It has the threaded barrel. How do they function.? Seems the early ones gave some problems. Is the newest bach good ? Can it shoot out to100 yards accuratley. Sure would like some input. Thanks.
 
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Those carbines are intriguing for sure. I too read alot of negative reviews on the 45 acp models regarding extremely poor functioning. Seems the 9mm & 40 ran well. My buddy just bought one in 45 two weeks ago. I thought, oh no,this might be a disaster. Well, we ran 150 rounds thru it on the maiden voyage. A few jacketed, a few copper plated, mostly lead, round nose, semi-wad, lite loads, heavy loads & in between. Flawless. 100% functioning. These were all handloads. I was relieved it worked. He had not heard the earlier negative reviews. It has over 500 rounds thru now. Still works.
 
I have a 9mm one no problems. I use it for coyote hunting. I think as snooker said it was the 45 that had trouble but I believe those issues where solved.
 
A shooting buddy has one which I've put a couple of mags through.

Because they are a rather basic plain blowback the recoil kick has more smack to it than the much more refined Beretta Storm and HK carbines that I've shot. But those two make the handgun ammo feel like you're barely shooting something more than a rimfire rifle. The simpler design of the JR kicks more but it feels more like you're doing something so for me it made me smile a lot more than the Storm.

Some of the ejection gasses also vent out the side thanks to this same basic design. So expect to feel some of the gases on your face during shooting.

We only shot it at 50 yards were it did well at hitting the 4 inch steel swinger we were using as a target. And that was standing free style. Can't comment on the 100 yard rested accuracy. I wouldn't expect "clover leafs" but it seems like 2 to 3 inch groups rested with a scope should be pretty easy to manage.
 
lone ranger said:
I am looking at buying the latest edition of the JR carbine in 9mm. It has the threaded barrel. How do they function.? Seems the early ones gave some problems. Is the newest bach good ? Can it shoot out to100 yards accuratley. Sure would like some input. Thanks.
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I have the 9mm version and I love it. It's a very solid, well built, reliable and accurate rifle. It eats just about any ammo I feed it. The only ammo that has ever given me issues is Sellier & Bellot 9mm luger. It seems to cause the odd stove-pipe ejection. everything else, even cheap-ass MFC steel case ammo feeds just fine.
 
buy extra mags with it, I love my 9mm. I found higher optics were more comfortable for me, keeping in mind the jr comes with out sights, definitely a keeper
 
Not good. Not bad. To quote Tony the Tiger "They're grrrrrrrreat!"

Had one in 9mm and .40. Wish I hadn't sold it. I do hear there are still issues with the .45acp. If your into that calibre I guess..... ;)
 
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I have one in 9mm and it runs fine. Like someone said earlier buy extra mags!!! Its a cool gun for sure. I have only shot it at 25-50 meters so not sure about 100 accuracy but its decent at 50, maybe 3-5'' groups although I did not measure but they were all on paper anyway. I went with a red dot over traditional scope but might switch it up and see what it can shoot someday.
 
MadMarty said:
Not good. Not bad. To quote Tony the Tiger "They're grrrrrrrreat!"

Had one in 9mm and .40. Wish I hadn't sold it. I do hear there are still issues with the .45acp. If your into that calibre I guess..... ;)
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your just the guy i want to talk to then because you had both the 9 and 40. was there any issues feeding the 40? the 9 seems pretty solid and reliable however you dont hear much about the 40cal, i guess that is mainly because the 2 calibers are *kinda* close that most people choose the 9 because of the cost of factory ammo. secondly did you ever try using 9mm ammo in the 40 mag? was wondering if it was possible to squeeze a few extra rounds in like I hear about in some other 40 s&w pistol mags. thanks
 
I've shot my .40 at 100 yards with a scope, seems to work well. Don't recall the group sizes, but it was OK considering it's not a precision rifle. bullet drop between 50 to 100 yards was pretty significant. I mostly use it at 50 yds tho. I've got well over 1,000 rounds thru mine. I did originally have a light primer strike problem, but a phone call got that fixed pretty quickly.
 
Well , a bunch of money later.......... Put a "sight mark" reflex red dot sight on. And a UTG tactical foregrip on. It has a hiding place in the botom for spare battery ECT. and the slide comes off the side for a "lazer or light " switch. I decided to put a red/green dot scope on my hand cannon as well. I was in a buying mood. Well, off to the range to pound this thing..hope it works as well as my RIA 22 I bought from Frontier.
the carbine.

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couple sight pics

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the foregrip
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The bottom opens..."storage"
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the hand cannon with new scope

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No issues with any FTE or FTF in either 9mm or the .40. The only issues I had were when I put .40 in the 9mm glock mags. Then there was magazine feeding issues on the last 3-4 rounds. If you want to save your thumbs get a Maglula Uplula speed loader!
 
I have one in 45acp. I had trouble big time!
Factory ammo is just too hot for this carbine! Factory pressures create far too much bolt thrust for the original bolt& spring. The action simply moves way too violently to reliably feed the following round.

I took 50 rounds of factory (3 different types) "150 rounds", and pulled all of them.
I measured the powder charges to get an average for each type of ammo.
Reduced the charge by .4 grains, and reloaded them to the original OAL.
I also resized and belled the cases for proper bullet tension.

Result: a significant reduction in damaged cases or missfeeds!
Only three missfeeds in the whole 150 rounds. Not too bad now.
This reduced load gives me the typical velocity that 45ACP should shoot at.

I feel that JR carbine manufacturing just made a bad call on the buffer spring compression poundage.

Other than this, i love the little carbine!
It shoots cast bullets very well also!
 
dthunter said:
I have one in 45acp. I had trouble big time!
Factory ammo is just too hot for this carbine! Factory pressures create far too much bolt thrust for the original bolt& spring. The action simply moves way too violently to reliably feed the following round.

I took 50 rounds of factory (3 different types) "150 rounds", and pulled all of them.
I measured the powder charges to get an average for each type of ammo.
Reduced the charge by .4 grains, and reloaded them to the original OAL.
I also resized and belled the cases for proper bullet tension.

Result: a significant reduction in damaged cases or missfeeds!
Only three missfeeds in the whole 150 rounds. Not too bad now.
This reduced load gives me the typical velocity that 45ACP should shoot at.

I feel that JR carbine manufacturing just made a bad call on the buffer spring compression poundage.

Other than this, i love the little carbine!
It shoots cast bullets very well also!
Click to expand...

Does yours have the "upgrade" kit installed? I think that's what the heavier buffer and buffer tube extension were supposed to accomplish. The new magwell also has an improved feed ramp.
 
I've had the privilege of shooting hundreds of rounds through both 9mm and 45ACP models. Both functioned perfectly, the 45 got slightly better groups on equivalent optics. While it's an excellent product, I personally don't have any use for one.
 
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