FNP-45 mag problem

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wdcfromaz
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FNP-45 mag problem

Post by wdcfromaz » 10 Apr 2010, 21:01

I just picked up a used FNP-45 and when I use 230 grain round nose the bullets are too long and drag in the mags. I measured my rounds and came up with an OAL of 1.260.
My Lyman manual lists max OAL at 1.275. The same rounds fit with extra room in other guns. Do the Fn's run a little small or do I have some bad mags? Tried some shorter hollow points and the gun is awsome!
Also if anyone can help what is the yellow plastic barrel that came with my FNP-40 for?

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Rapier1772
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Re: FNP-45 mag problem

Post by Rapier1772 » 11 Apr 2010, 04:08

Cant answer the other questions but the yellow plastic barrel is likely a training barrel. You can use it for dry firing or demonstration purposes & not worry about a round in the chamber. If it is the kind I am thinking of... :?:
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gearhead
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Re: FNP-45 mag problem

Post by gearhead » 12 Apr 2010, 11:35

The yellow plastic barrel was part of the Shooter's pack, as stated it's for practice/dry firing.

The FNP-45 magazines have a known issue with not liking any ammo that runs longer than the SAAMI spec. The dimensions you list should be right on the edge of the spec, you might have an unusually tight magazine. A call to Customer Service might get you some new mags.

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bobapunk
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Re: FNP-45 mag problem

Post by bobapunk » 23 Apr 2010, 16:49

I have having this issue with 5 out of my seven mags as well. Anyone have any more info?

Here are some cell phone pics of the jammed rounds:

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Buffman
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Re: FNP-45 mag problem

Post by Buffman » 23 Apr 2010, 18:15

that's what one of mine was doing with WWB. I havent' shot mine yet or tested other mags, but mine would do that on #5.

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bobapunk
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Re: FNP-45 mag problem

Post by bobapunk » 23 Apr 2010, 19:46

Those rounds are WWB FMJ.

WWB and Rem UMC JHPs all work fine since they are shorter...
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panzermk2
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Re: FNP-45 mag problem

Post by panzermk2 » 23 Apr 2010, 21:34

Bullets are to long for the mag. Measure them with a caliper and let us know the OAL.
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Buffman
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Re: FNP-45 mag problem

Post by Buffman » 23 Apr 2010, 22:41

I've found most wwb to be at MAX if not over MAX of 1.27+

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bobapunk
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Re: FNP-45 mag problem

Post by bobapunk » 24 Apr 2010, 04:49

Jay, are you saying that it is an issue with the bullets and not an issue with the mag?

I have to try some reloads with a shorter OAL...
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Re: FNP-45 mag problem

Post by panzermk2 » 24 Apr 2010, 07:59

Yep. It may be a tight mag and those bullets might be a shade to long, it happens. Years ago I had a bunch of SB that worked fine in my Chip mags but not in my Wilson match grade mags.
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bobapunk
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Re: FNP-45 mag problem

Post by bobapunk » 29 Apr 2010, 17:14

FN's offical answer via Bob A. = WWB is longer than SAMMI spec. The solution is to not use WWB.

Not quite the answer I wanted, but I will deal I guess... Just have to find a shop that carries Remington or Federal...
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Re: FNP-45 mag problem

Post by blueorison » 29 Apr 2010, 18:49

bobapunk wrote:FN's offical answer via Bob A. = WWB is longer than SAMMI spec. The solution is to not use WWB.

Not quite the answer I wanted, but I will deal I guess... Just have to find a shop that carries Remington or Federal...
Bob you try Blazer in it? Cabela's was sellin blazer brass/non-brass for pretty ok prices around here. Cheaper than WWB.
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bobapunk
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Re: FNP-45 mag problem

Post by bobapunk » 29 Apr 2010, 19:02

Have not tried Blazer. No Cabela's around here :(

I see it time to time at Wal-mart...
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lazi
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Re: FNP-45 mag problem

Post by lazi » 12 May 2010, 23:26

i feel kinda bad for not mentioning it earlier (before this post) but i did have had some ammo sticking in my mags. i'm assuming "WWB" is winchester white box which is the exact same ammo that i have been having problems with. i just got them to run a bunch of ammo at the range but seeing that there is a consistent problem with it then i will avoid them in the future.

Thanks!!!!!!

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Re: FNP-45 mag problem

Post by remat457 » 22 May 2010, 21:09

bobapunk wrote:FN's offical answer via Bob A. = WWB is longer than SAMMI spec. The solution is to not use WWB.

Not quite the answer I wanted, but I will deal I guess... Just have to find a shop that carries Remington or Federal...
Umm..I don't want to seem like Mr. Negative here, but does that seem like an acceptable answer to everybody else?

Some questions...
1. Is it really longer than SAAMI?
2. Why does only the FNP have this OAL problem? (at least as far as I know). WWB feeds out of everything I have ever shot it...

Unless there is a big sticker on the box and manual that says WWB is not acceptable I think it is a problem. We are not talking about boutique ammo here.
Thoughts?

wdcfromaz
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Re: FNP-45 mag problem

Post by wdcfromaz » 22 May 2010, 21:22

I got the same answer and when I told Bob I measured my rounds and they were UNDER sammi spec he told me to oil the inside of the mags and the follower. Not what I wanted to here but it does feed a little better. This seems to be a problem, I would have liked to hear, send them back and we will send you ones that work.

lazi
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Re: FNP-45 mag problem

Post by lazi » 06 Jun 2010, 02:51

Well I consider the mags not feeding to be a big problem. Even though I'm not about to ditch my FNP45 I would like to know that it's not gonna flake out on me over something that was from FNH. I will avoid WWB but if FNH offers a recall to replace these mags for mags that won't have this "problem" then I'm all in. If we need to do something to confirm this as a problem then my name can go on the list. Just the same as I had a mag of WWB in FNP when I went to the range I had the same ammo in my mags while at home every day. Not like it was critical at any point but I would've been screwed if the zombies came diving through my windows. It wasn't fun at the range shooting the last few 50-60 WWB FMJ I had and it sure as hell wouldn't be cool if my safety was on the line.

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Re: FNP-45 mag problem

Post by SSBiggun » 06 Jun 2010, 18:59

I guess I am a little late to the topic here but I found the same issue and now load all my .45's to 1.250.The FNP-45 mags do not like 1.27-1.275 O.A.L. Since I haven't used any other Factory Ammo I couldn't say which brands have the shorter length but WWB is too long.

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Re: FNP-45 mag problem

Post by Buffman » 07 Jun 2010, 08:49

Agreed WWB is not only longer than most, there OALs very so much over a box of ammo it's ridiculous. I found a box of my Federal Champions to be well within a few thousands of each other. the WWB on the other hand some have measure 1.272, some were 1.252, and a bunch in between. That being said I've ran 200 rounds through my FNP45T of WWB and had one jam (spent round wedged itself parallel with the barrel inside the frame) during a 50 round drump session.

remat457
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Re: FNP-45 mag problem

Post by remat457 » 10 Jun 2010, 21:59

Ok, assuming that the QC on WWB is that bad, then why of the huge plethora of available 45's on the market does only the FNP have this problem?

I am not bashing FN or the FNP by any means, however, this problem is enough to keep me from purchasing an FNP45, and it was on my short list.

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