Blr difficult to eject

sorry miss read your earlier post. Max for IMR 4831 is listed at 61.8gr for a 162gr bullet. So your load of 60grs still might be to hot for your lever rifle. Like I said in my other post back of the powder charge a few grains and see it makes a differance. Cleaning your chamber like others have said might help as well but I still think your just running to hot of a load for your rifle.
 
r204 said:
sorry miss read your earlier post. Max for IMR 4831 is listed at 61.8gr for a 162gr bullet. So your load of 60grs still might be to hot for your lever rifle. Like I said in my other post back of the powder charge a few grains and see it makes a differance. Cleaning your chamber like others have said might help as well but I still think your just running to hot of a load for your rifle.
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I agree. Going to a slower burning powder like Hodgdon H4831 or probably better still H1000 would likely maintain velocity while significantly reducing pressure.
 
Cartridges chamber fine, unfired brass extracts Ok, so maybe not a brass/sizing issue but still some chance it might be. Measuring cases won't necessarily answer the question unless it is a sizng problem. :)

Hard extraction might be from high pressure. I would check the load and maybe try backing off a bit to see if extraction got better. Usually we know the rifle well enough that we recognise hard extraction of a new loading as a problem immediately without having to guess. OP didn't say he has shot any previous loads or factory ammo and if they had problems extracting or not.

It's also fairly common that hard extraction in pumps, semi-autos, levers can be caused by sticky chambers. OP says this is a new gun, so maybe the chamber wasn't cleaned well before shooting and some grease or excess oil that has baked on to the chamber walls. I'd have a look at the chamber and probably scrub it just because that seems to be a common problem.

But you're right - it's all just guessing.
 
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Ron AKA said:
I have a .264 WM in a Remington 700, and the same cartridge in a Browning. The fired and reloaded cases from day one would not fit in the other gun. Remington does not fit Browning, and Browning does not fit Remington. The Browning was rebarreled and the same situation exists. It is obviously not unusual for fired cases from one gun not to fit another. And, it is not as simple as one chamber is smaller and the other larger, or the casings from the smaller chamber would fit the larger chamber gun. The other moral in this story is not to use range brass. Just asking for trouble.
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It is not a question of fired cases not fitting in an other chamber it is a question of resized not chambering in some guns. The dies are suppose to return the cases to a condition to fit all standard size chambers. And that is cases with out a belt, throw in a belted case and that is an other variable. Then you have maybe a die that is on the larger end of the tolerance and a chamber on the tighter side of the same tolerance .


But the op hasn't got a problem with chambering he has a problem with extraction and his loads are on the higher end of the loading scale sounds like he may have a pressure or chamber problem.
 
Had a blr 308 that showed pressure signs at min load using IMR3031. Switched to RL15 and all my pressure problems went away. Nothing wrong with blr in 7 mag. If it was me I would try a different powder.
 
centerfire said:
Hey guys I got a new blr here in 7mm Remington mag using my reloads I have difficulty cycling the lever down to retract and eject the brass after firing...
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Sounds like it could be excessive pressure. I have a .358 Winchester BLR and it doesn't take much over-pressure to notice sticky extraction with this action. Doesn't have the extraction power of my Mauser bolt action, for example.

BLR_158gr_zps8b93f1aa.jpg
 
Hey guys I'm using win brass that I got from wherever fired from whatever with fed 215m primers
Loaded three yesterday fired the first it cycled beautiful, second beautiful and the third stuck.
I have no sign of pressure on my primers where the firing pin hits. I removed the primers and the one that stuck has a bit of a lip on it almost like a mushroom cap is this a sign of excessive pressure?
And I have cleaned my chamber seems the one that stuck is expanded about .002 about 0.080" above the magnum belt and with a blackened case that's where it rubs
 
centerfire said:
Hey guys I'm using win brass that I got from wherever fired from whatever with fed 215m primers
Loaded three yesterday fired the first it cycled beautiful, second beautiful and the third stuck.
I have no sign of pressure on my primers where the firing pin hits. I removed the primers and the one that stuck has a bit of a lip on it almost like a mushroom cap is this a sign of excessive pressure?
And I have cleaned my chamber seems the one that stuck is expanded about .002 about 0.080" above the magnum belt and with a blackened case that's where it rubs
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Here is a good article on the signs of excessive pressure. I think what you are describing is quite possibly signs of high pressure.

Using cases that come "from wherever fired from whatever" is the worst possible practice. I would suggest the first thing you do is dump all that range brass and start with new unprimed brass from your manufacturer of choice. I would probably pick Winchester if this is not a high accuracy application.

And as I have said at least twice before. Use H1000 powder which is slower and ideally suited to the 7mm Remington Magnum, and REDUCE YOUR LOAD, until you stop getting stuck cases.
 
centerfire

Does factory loaded ammunition eject and function properly?

Is it only your reloads that are hard to extract?

Are you using range pickup brass or once fired brass fired in another rifle?

Do you have a vernier caliper to measure just above the belt?

All the replies here are educated guesses and only "YOU" have the rifle and fired cases in your hands, we do not.

I would buy a box of factory Remington or Winchester ammunition and use them as a baseline for measurements just above the belt. (their brass is harder than Federal)

These measurements would be before firing, after firing and after resizing measuring the diameter just above the belt.

Many here say it a pressure related issue and I'm leaning at insufficient sizing above the belt.

Lever actions are harder to clean and you said it is a new rile and copper buildup in the bore can cause higher pressures.

Bottom line, I would use foam bore cleaner to remove and copper and carbon from the chamber throat and bore and also measure above the belt for starters.

NOTE:

The Sierra manual for a "168" bullet lists 62.2 grains of IMR-4831 as a max load. (Savage bolt action, pressure reading taken with strain gauge)
The Lyman manual using a "168" grain bullet lists 64.0 grains of IMR-4831 as a max load at 60,500 psi. (universal receiver and pressure test barrel at minimum chamber and bore dimensions using a pressure transducer)
 
centerfire said:
I have no sign of pressure on my primers where the firing pin hits. I removed the primers and the one that stuck has a bit of a lip on it almost like a mushroom cap is this a sign of excessive pressure?
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Some call that a "muffin top primer". It may be a sign of excess pressure, but it is a sure sign of excessive headspace. What is happening is that the firing pin slams the case ahead in the chamber. The powder fires and pops the primer back partly out of the pocket. Then the case slam back against the bolt. That action creates the muffin top shape of the primer. The way to prevent this is to short stroke your resizing operation so you only touch the shoulder of a fired case to bump it back about 0.001". Do not do a full resize. But, your hard extraction is telling you the pressure is too high, so you probably have both issues.
 
The Innovative Technologies – Belted Magnum Collet Resizing Die below is also a case gauge. If the case does not drop in the top of the die it needs to be sized with the collet die.

Innovative Technologies – Belted Magnum Collet Resizing Die: Review
http://www.surplusfirearm.com/2011/11/17/innovative-technologies-belted-magnum-collet-resizing-die-review/

"I painstakingly loaded and attempted to chamber my first 7mm Rem Mag reload, closed the bolt and the round wouldn’t chamber completely. I tried the other nine rounds and only five actually chambered. Confused as to the problem my attention was turned to the ammunition when I got back home. After some internet research I found out that belted magnum cartridges are notorious for having bulges a few millimeters above the belt after two or three reloads that often prevents the round from chambering – and to make things worse, there wasn’t a conventional die that could repair the problem through the normal sizing process. That is until I stumbled on a Belted Magnum Collet Resizing Die manufactured by Innovative.

After sizing the cases I removed the collet and measured the cases. Having measured this case prior to resizing, it measured .513″. After resizing, it measured .510″ and it fits very well into my rifle chamber."

As I stated before measuring the case above the belt will tell you a story and end all the guessing.

The BLR is chambered for cartridges rated up to 65,000 psi, a 30-06 is rated at 60,000 psi, the 7mm mag is rated at 61,000 psi and the .270 at 65,000 psi.

The vast majority of extraction problems with "reloaded" belted cases is the case not being sized enough above the belt.
 
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