bulling brass

jack007 · 04-04-2008, 06:51 PM

has anyone noticed the bulge at one side of the base of the brass for m/n military ammo after firing. is it normal?

mitch_mckee · 04-04-2008, 06:59 PM

Quote:

Originally Posted by jack007

has anyone noticeh the bulge at one side of the base of m/n military ammo after firing. is it normal?

Are you certain that your chamber is OK?

texnmidwest · 04-04-2008, 07:00 PM

Never noticed a bulge on anything but my gut.

jack007 · 04-04-2008, 07:06 PM

i have 2 91/30 & m44. The first was unissued , sold as a new rifle. The m44 was a refurb. They both do it.

marion57 · 04-04-2008, 07:31 PM

what kind of ammo?

SwedeSteve · 04-04-2008, 07:54 PM

It has to be the ammo then!

toolman · 04-04-2008, 07:59 PM

I own 3 M\N's and none of them do it. I would suggest making a witness mark on a few cartridges and loading them single-shot so they all index to the same spot and see exactly where the bulge is occurring. If the bulge always shows up in the same spot, I'd inspect the chamber very closely for anything out of the ordinary.

SwedeSteve · 04-04-2008, 08:08 PM

That's a great idea TM! That is why we all like you so much!

marion57 · 04-04-2008, 08:21 PM

still wonder if its ammo !! What kinda surplus ??

SwedeSteve · 04-04-2008, 08:45 PM

He's offline Marion, so I guess we'll have to wait and see. In the meantime, you're a boogerhead! LOL I've never been the first one to hijack a thread, now I can cross that off my list!

jack007 · 04-04-2008, 09:13 PM

the headstamp is 10/82 . I have used other ammo same result. maybe more of a swelling than a bulge. I have used 100 or so rounds

Geo M44 · 04-04-2008, 09:35 PM

Only with brass? Are you seeing this when the brass cools down?

I've never noticed this with either Milsurp brass (bulgarian) or reloadable brass (all kinds), and I reload quite a bit.

jack007 · 04-04-2008, 09:45 PM

if i shoot it and eject it . it's bulged . looks like it is where the ejecter fits in the reciver

mitch_mckee · 04-04-2008, 09:52 PM

Quote:

Originally Posted by jack007

if i shoot it and eject it . it's bulged . looks like it is where the ejecter fits in the reciver

Interesting. In my humble experience, I've nver seen a rifle that was supposed to eject cases that were bulged. I've seen many damage cases, but they had chamber or headspace problems and were on the verge of DANGEROUS or crappy ammo, which might be dangerous.

I'd not fire another round through them until you get answers.

jack007 · 04-04-2008, 09:59 PM

think i will take the gun and some of the cases to the gunshop were i got them . I will see what they think. thanks to everyone for there advice

one thing i just noticed on the m9130. if you remove the bolt and look at the chamber were the ejector cutout is at. it is not flush with the rest of the chamber

just_a_car · 04-05-2008, 04:59 AM

Quote:

Originally Posted by jack007

think i will take the gun and some of the cases to the gunshop were i got them . I will see what they think. thanks to everyone for there advice

one thing i just noticed on the m9130. if you remove the bolt and look at the chamber were the ejector cutout is at. it is not flush with the rest of the chamber

Yes, there is a space for the ejector to move through the radial motion of locking the bolt down. If that's about where your bulge is, then no worries, especially since brass will flex and form to the chamber; with no support you'll get a bulge.

Do as toolman said and put a mark with a Sharpie or something on the case, then insert it with the mark in a known position (I hear 'up' is popular these days) and then see if that bulge matches up with the area where the ejector passes through around the rim. If so, you're pretty much in the clear. As with any good experiment, you will need at least three tests of this to reduce the error and the "confidence interval"... which I won't get into, as I learn about it in my 400-level chemistry courses.

marion57 · 04-05-2008, 08:00 AM

Quote:

Originally Posted by SwedeSteve

He's offline Marion, so I guess we'll have to wait and see. In the meantime, you're a boogerhead! LOL I've never been the first one to hijack a thread, now I can cross that off my list!

Tex would have if he had not been wrasslin with big foot

texnmidwest · 04-05-2008, 08:24 AM

Quote:

Originally Posted by SwedeSteve

He's offline Marion, so I guess we'll have to wait and see. In the meantime, you're a boogerhead! LOL I've never been the first one to hijack a thread, now I can cross that off my list!

Ya, Swede, your highjack didn't work very well. Some of us got it and so of us don't. They just tell me I am full of it!

billy · 04-05-2008, 08:26 AM

i like going to the beach and eating pie......

texnmidwest · 04-05-2008, 08:42 AM

Ooooooooooooo, I could ask what kind of pie but....does it involve a red face or a trip to the dentist?

04-04-2008, 06:51 PM	#1
jack007 Senior Member Join Date: Apr 2008 Location: texas Posts: 143	bulling brass has anyone noticed the bulge at one side of the base of the brass for m/n military ammo after firing. is it normal? Last edited by jack007; 04-04-2008 at 06:59 PM. Reason: typo

04-04-2008, 07:00 PM	#3
texnmidwest Listen to yur Inner Hippo Join Date: Dec 2007 Location: South east Wisconsin Posts: 3,464	Never noticed a bulge on anything but my gut. __________________ "Quando Omni Flunkus Moritati" (If all else fails play dead)

04-04-2008, 07:31 PM	#5
marion57 Senior Member Join Date: Dec 2007 Location: Missouri Posts: 2,885	what kind of ammo? __________________ You can have my gun when you pry it from my cold dead fingers!(Charlton Heston)

04-04-2008, 07:54 PM	#6
SwedeSteve Thor's Hammer Join Date: Feb 2007 Location: Alaska Posts: 10,400 Images: 1	It has to be the ammo then! __________________ Thank God we don't get as much Government as we pay for! -Will Rogers

04-04-2008, 07:59 PM	#7
toolman Mr. Fixit Join Date: Apr 2002 Location: abilene,tx Posts: 5,582 Blog Entries: 22	I own 3 M\N's and none of them do it. I would suggest making a witness mark on a few cartridges and loading them single-shot so they all index to the same spot and see exactly where the bulge is occurring. If the bulge always shows up in the same spot, I'd inspect the chamber very closely for anything out of the ordinary. __________________ Don't be messin' with my gun!

04-04-2008, 07:06 PM	#4
jack007 Senior Member Join Date: Apr 2008 Location: texas Posts: 143	i have 2 91/30 & m44. The first was unissued , sold as a new rifle. The m44 was a refurb. They both do it.

04-04-2008, 08:08 PM	#8
SwedeSteve Thor's Hammer Join Date: Feb 2007 Location: Alaska Posts: 10,400 Images: 1	That's a great idea TM! That is why we all like you so much! __________________ Thank God we don't get as much Government as we pay for! -Will Rogers

04-04-2008, 08:21 PM	#9
marion57 Senior Member Join Date: Dec 2007 Location: Missouri Posts: 2,885	still wonder if its ammo !! What kinda surplus ?? __________________ You can have my gun when you pry it from my cold dead fingers!(Charlton Heston)

04-04-2008, 08:45 PM	#10
SwedeSteve Thor's Hammer Join Date: Feb 2007 Location: Alaska Posts: 10,400 Images: 1	He's offline Marion, so I guess we'll have to wait and see. In the meantime, you're a boogerhead! LOL I've never been the first one to hijack a thread, now I can cross that off my list! __________________ Thank God we don't get as much Government as we pay for! -Will Rogers

04-04-2008, 09:13 PM	#11
jack007 Senior Member Join Date: Apr 2008 Location: texas Posts: 143	the headstamp is 10/82 . I have used other ammo same result. maybe more of a swelling than a bulge. I have used 100 or so rounds

04-04-2008, 09:35 PM	#12
Geo M44 Senior Member Join Date: May 2006 Location: The Desert Posts: 2,212	Only with brass? Are you seeing this when the brass cools down? I've never noticed this with either Milsurp brass (bulgarian) or reloadable brass (all kinds), and I reload quite a bit.

04-04-2008, 09:45 PM	#13
jack007 Senior Member Join Date: Apr 2008 Location: texas Posts: 143	if i shoot it and eject it . it's bulged . looks like it is where the ejecter fits in the reciver

04-04-2008, 09:59 PM	#15
jack007 Senior Member Join Date: Apr 2008 Location: texas Posts: 143	think i will take the gun and some of the cases to the gunshop were i got them . I will see what they think. thanks to everyone for there advice one thing i just noticed on the m9130. if you remove the bolt and look at the chamber were the ejector cutout is at. it is not flush with the rest of the chamber Last edited by jack007; 04-04-2008 at 10:06 PM. Reason: Automerged Doublepost

04-05-2008, 08:26 AM	#19
billy spiritual counselor Join Date: Jul 2006 Location: a secret lab on the shores of lake titicaca Posts: 12,203 Images: 9 Blog Entries: 146	i like going to the beach and eating pie...... __________________

04-05-2008, 08:42 AM	#20
texnmidwest Listen to yur Inner Hippo Join Date: Dec 2007 Location: South east Wisconsin Posts: 3,464	Ooooooooooooo, I could ask what kind of pie but....does it involve a red face or a trip to the dentist? __________________ "Quando Omni Flunkus Moritati" (If all else fails play dead)