Remington Green box over pressure

[FJ540]

I got a box of these for helping a buddy out and hadn't shot any of it until last weekend. They were the first rounds out of the Mrs' 3.5" 1911 I built for her and I wasn't really sure what to expect out of the gun, but it did breathe fire.

I was policing up the brass before switching to the herters steel cases and happened to notice something odd...



The herters was a much milder load for sure, but looking at the primers it's obvious to see why.

I've still got a few of these bullets left and will be pulling a couple and weighing the charges.

[usnret]

What is weighing the charges going to tell you? You don't know what the powder type is or the charge weight is suppose to be, seeing as they are factory loads.

[JJ]

What is weighing the charges going to tell you? You don't know what the powder type is or the charge weight is suppose to be, seeing as they are factory loads.

[FJ540]

A little different view:



The weight would be something I can discuss with Remington and find out if it was a measure issue or a powder issue. Sadly, I don't have the box anymore, but we might still have the lot info if what another friend said is true.

[OldmanFCSA]

Have you tried another brand, or several?

I do not see over-pressure - I see possible boltface and/or firing pin issues - mainly boltface.
Is the clearance hole for the firing pin larger than needed or recessed?

If it was true - overpressure - edges of primers would be more flattened.

I think you have a gun issue.

Steel-cased ammo is known to have hard primers, so you may not see as much a problem with those.

Let us know what you find.
If you're near Oakdale, I will give you a box of PMC to try, or look at gun if you wish.
(Home today - wife & dog both sick.) (here come the one-liners)

[JJ]

IF you cone for breakfast and range session I can bring some stuff to try out. Including some +p I think.

[FJ540]

I'll look at the firing pin hole clearance and see what I find.

This was the only alternate 9mm ammo I had with, so I didn't shoot anything else. I did shoot this gun with other ammo a year ago and didn't have this problem then.

[mmcnx2]

I agree doesnot look like a pressure issue, the primers are not really flowing. It looks like a overage in breach face to back of the barrel.

[westhope]

Did you put a titanium firing pin in?

I've seen some ammo (soft primer materials) blow back the primer materials into the firing pin hole when titanium firing pins were used. Problem was solved when a steel firing pin is used. It has to do with the titanium firing pin having less mass than a steel firing pin and the support the firing pin gives to the primer when fired.

[FJ540]

It's a springer loaded, so I'm pretty sure it started with a titanium pin. It feels the same as my .45's and that one is.

Could be that these primers are just softer than the others. I'll run some of the ammo through our other 9's and see what they do with it.

[FJ540]

Firing pin is nice and tight to the slide without excessive radius or any signs of wear for that matter. Breech face is also flat and doesn't look worn.

I refinished the frame for purely cosmetic reasons. The gun had some bumps/bruises, but wasn't clapped out by any standard.

[mccandmatt]

Try a few other brands of ammo that use brass casings, steel cased ammo uses lower charges so a comparison really cannot be done between the cheap steel cased ammo and brass cased ammo. I could be completely wrong, I generally am wrong more than not

[gman1868]

Remington is notorious for having light loads. I have shot a bunch of that ammo and wouldn't use it for pistols matches becuase of the risk of malfunctions due to the light loads.

[Seismic Sam]

Had the same problem with my first Springfield 1911 V-16, and it got to the point that my firing pin hole got clogged up with brass shavings. Took a real close look at the gun, and damned if it turned out if the breech face had been poorly machined and was slighly concave. As an aside, the interior of the gun had some big machining marks in the slide, so somebody forgot to change out a cutterhead(s) on a CNC machine soon enough. Sent the gun in with a complaint letter, and got the same gun back, and the breechface was flat, because they had just machined about 20 mils off the breech face!! Great! Now I got a gun with a 20 mil headspace problem, and I'm shooting 45 Super at that. Sent back in the gun again with a smoking hot letter asking them WTF??? and got a brand new gun back that was pretty much flawless, and the problem went away. Now my 45 Super brass has flat primers, but no shaved brass from the firing indent. Check your breechface VEERRRY carefully!

[Seismic Sam]

Okay, you have really got me puzzled now. HERTER'S steel cases?? How old was that ammo, and where did you get it?? Herter's was very much into reloading 30 - 40 years ago, with some custom calibers they came up with, so I can't see them offering unreloadable steel cases. Steel cases are pretty much a Kommie specialty, and 40 years ago the Cold War and Vietnam was hot and heavy, and the USA sure as hell wasn't getting any ammo from a Soviet bloc country back then.