[thunderlumber]

recently acquired a jcp. owned one previously that i sold and regretted selling it ever since, (can never have too many guns), so picked up another. only took my first to the range one time, and put around 75 rounds thru it with no problems. the new one? uh, not so much. have had nosedive issues from day 1.
10 rounds in the mag and i get this every time. reduce it to 5 and it rarely nosedives.
i took the slide off and polished the feed ramp so thats not it.
i have read that adjustments to the feed lips can help but i would rather not mess with that unless theres no other option. hopefully this will improve as the mags break in?
the confusing part is that my 4095 ive had for several months eats whatever i feed it using the same mags. and i always have the mags full with 10 when not in use. any other suggestions i couldnt locate with google?

 

[undeRGRound]

recently acquired a jcp. owned one previously that i sold and regretted selling it ever since, (can never have too many guns), so picked up another. only took my first to the range one time, and put around 75 rounds thru it with no problems. the new one? uh, not so much. have had nosedive issues from day 1.
10 rounds in the mag and i get this every time. reduce it to 5 and it rarely nosedives.
i took the slide off and polished the feed ramp so thats not it.
i have read that adjustments to the feed lips can help but i would rather not mess with that unless theres no other option...

Check spring orientation @TNTRAILERTRASH has pix for that...
Otherwise it's likely feed lips...

 

[cicpup]

Check spring orientation @TNTRAILERTRASH has pix for that...
Otherwise it's likely feed lips...

Except for this:

the confusing part is that my 4095 ive had for several months eats whatever i feed it using the same mags. and i always have the mags full with 10 when not in use.

Make sure the rounds are set back and pointed up. I'm sure you already knew that though. When inserted, is there much up n down play with the mag? You didn't mention it, is this thing new or previously fucked with?

 

[TNTRAILERTRASH]

Check spring orientation @TNTRAILERTRASH has pix for that...
Otherwise it's likely feed lips...

Say what? I don't think so. I don't have any pics.

So I'll ask the easy question does the mags work in the 4095? Do the 4095 mags work in the pistol?
Push the rear of the round down to make sure it goes nose up.

Are you "limp wristing?"

Turn youtube off before you fuck up the gun.

 

[thunderlumber]

i have 4 mags. all work in my 4095. none in the pistol. at least not at capacity. 2 mags are fairly new, but one came with the 4095 i picked up several months ago, and one came with my first pistol that has to be at least 10 years old, and has had 10 rounds in it most of the time.
not limp wristing, but it doesnt matter. it wont chamber the first round with any of the 4.
jcp was purchased new. little to no up and down play on the mag when inserted. frustrating. i purchased the gun to be my range beater

 

[cicpup]

How well does it load short a round or two? If you load them nose up and after they're inserted they're nose down, grab a flashlight and look down the hole to see what they're snagging on. Maybe the LRHO.

 

[Delbert]

If the pistol mag(s) don't work in the carbine, then I'd give MOM a call. It's bad magazines. They'll send out new ones.

It could be combination of a few items. Bad spring, spring oriented incorrectly, mag feed lips not spec'd correctly, not heal palming the loaded mag before inserting to be sure rounds are aligned against the mag's spline and 1st round not nose up correctly.

I can't tell by picture, but what color is the magazine(crap, mind went blank. That plastic piece that rides the mag spring under the ammo). Could be possible that HP employee installed wrong model. Just a thought.

 

[thunderlumber]

5 rounds or less. functions fine most of the time. anything more than that and i get a nosedive.

 

[thunderlumber]

if i insert the fully loaded mag with the slide locked back i see this.

 

[thunderlumber]

when i pull the slide back, release it to go forward and rack the round i get this.wtf?

 

[RACHGIER]

Open up the front of the feed lips a bit until you get a more nose high orientation. The carbines seem to be a bit more forgiving with how the round is oriented in the magazine.

 

[thunderlumber]

Open up the front of the feed lips a bit until you get a more nose high orientation. The carbines seem to be a bit more forgiving with how the round is oriented in the magazine.

this is what i kinda felt had to be the case all along. my 4095 chews em up and spits em out.
ill probably just load and shoot 5 rounds thru the jcp and hopefully, eventually, it gets broken in. whats the best way to open up the feed lips without jacking shit up?

 

[RACHGIER]

this is what i kinda felt had to be the case all along. my 4095 chews em up and spits em out.
ill probably just load and shoot 5 rounds thru the jcp and hopefully, eventually, it gets broken in. whats the best way to open up the feed lips without jacking shit up?

Well, let's look at three other possibilities.

A. Make sure those two dog- ear tabs up front aren't scraping the projectile.

B. Make sure the round is clearing the plastic spacer strip in front of the follower.

C. Mag sure the mag spring is installed properly. Place your thumb on the spine of the magazine and apply slight downward pressure on the base while sliding a flat tool, butter knives are perfect, in the slot on the base. Lift and you'll feel it pop. Repeat on the other side of the magazine.

Its such a slight adjustment that a pair of needle nose pliers, I prefer curved, will do the trick. Then just a light tweak on the front of the feed lips until the front of the round sits higher.

 

[RACHGIER]

Sorry, 4 things. Make sure the groove in your follower rides smoothly along the track on the spacer.

 

[thunderlumber]

Sorry, 4 things. Make sure the groove in your follower rides smoothly along the track on the spacer.

View attachment 68971

thanks for the info. i was planning on taking the mags apart this weekend and cleaning things up anyways so i will check things out.

 

[SWAGA]

if i insert the fully loaded mag with the slide locked back i see this.

Too late now but with that orientation how can it be the feedramp?
Shoulda started with the mags from the get go.
Anyway you've already got the solution so let's hope it works.

 

[RACHGIER]

Too late now but with that orientation how can it be the feedramp?
Shoulda started with the mags from the get go.
Anyway you've already got the solution so let's hope it works.

Well the biggest issue I've found with my 4095 is the bottom rounds slide forward and the rim hooks the rim of the upper round, and pulls the nose down. My rounds sit much higher down the full length of the case than his do in that picture.

I'm going to say feed lips and guide tabs fix the problem, but checking the rest never hurts.

 

[moona11]

Cleaning your mags are always a good idea.

 

[thunderlumber]

so.....
took the slide off today. mags inserted with 10 or 5 have a similar appearance. nose looks to be up enough to feed.

when i push the cartridge forward with 10 i get a nosedive.

with 5 in the mag i get this. up and in

as far as i can tell its because, with 10 loaded, there is a gap between the first and second cartridge that allow the first to nosedive, as you can clearly see.

this goes away when i put just 5 in the mag.

so i dont think its the feed lips, rather an issue with subsequent rounds not loading in the mag nose up when at capacity. if im wrong correct me, and if im right please help me find a solution. all 4 of my mags do this, and again, its not an issue with my 4095. guess ill head to the range tomorrow and shoot the piss outa my 4095 with a couple of the mags and see if i will get any improvement

 

[RACHGIER]

It's the rim of the second round catching in front of the rim on the round above it due to spring pressure, allowing the upper round(s) to nosedive.

Smack the farkle out of the spine of the magazine to seat your rounds properly to the rear before you put them in the gun. Leave the mags loaded at all times, shoot it often, and/or cycle the follower up and down with a dowel for its full length of travel to break in the springs.