Blr difficult to eject

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centerfire

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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 they load and slide in with ease but once fired are very difficult to retract and eject. Unfired ejects with ease and has no sigh sigh of high pressure. Cases are trimmed with lee case trimmer. It works fine with a factory load. I am using hornady custom dies with A # 5 hornady shell holder thanks in advance!
 
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Many belted dies do not size the case enough just above the belt and this can cause chambering and extraction problems.

Use a black felt tip marker and blacken the entire case and then chamber, looking for rub marks.

At the link below Larry Willis sells a collet die that sizes the case just above the belt. If you Google your problem you will see that the main cause of this problem is the case being too large a diameter just above the belt.

http://www.larrywillis.com/

If you have a vernier caliper you can measure new unfired cases above the belt, then a fired case and then a resized case to see if it it sized enough.

Again if you Google the subject many people with belted magnums have this problem.

Also remember we live in a plus and minus manufacturing world and chambers and dies vary in size. Meaning with another brand of die you "might" not have the same problem.
 
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 they load and slide in with ease but once fired are very difficult to retract and eject. Unfired ejects with ease and has no sigh sigh of high pressure. Cases are trimmed with lee case trimmer. It works fine with a factory load. I am using hornady custom dies with A # 5 hornady shell holder thanks in advance!
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A 7mm Rem Mag in a lever action?? Not a good start. However, what is your load specifics?
 
I would think if your cartridges chamber OK then the brass/sizing is not the issue. Try cleaning the chamber really well. If there is any roughness or residue built up in the chamber it can cause hard extraction.
 
162 gr bullet ahead of 60 gr of IMR 4831 max load is 62 gr started at 57 gr. No signs of pressure. Does it with 139 gr bullets and IMR 4350 as well has a mark just above the belt can see it now. What kind of dies is everyone here using?
 
Couldn't be anything else.May not like stiff loads or brass not sized enough for chamber........a buddies Sav 99 .284 had to be run at about 85% throttle or it was difficult to cycle.......Harold
 
centerfire said:
Anyplace in Canada you can get these larrywillis dies
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Before you buy the belted collet die first measure the cases as explained in my first post.

Lever, pump and semiautomatics have larger diameter chambers and you have more brass springback after sizing.

So again measure your cases, sometimes by simply pausing at the top of the ram stroke for a few seconds will reduce brass springback.

Meaning by pausing as above your problem may go away because the brass does "not" spring back as much.

You also need to find out if the die is even sizing the brass just above the belt.

Bottom line, find out where the problem is on the case and see if you can fix the problem without buying new equipment..

Question, are you using any brass fired in other firearms? And what brand brass are you using?
Some brands of brass are softer and not as thick in the base and expand more when fired.
 
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Ron AKA said:
A 7mm Rem Mag in a lever action?? Not a good start. However, what is your load specifics?
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The same Browning Lever Action is chambered in .270 Win with a rated chamber pressure of 65,000 psi.

The same Browning Lever Action is chambered in 30-06 with a rated chamber pressure of 60,000 psi.

And the same Browning Lever Action is chambered in 7mm Remington Magnum with a rated chamber pressure of 61,000 psi.

It appears some people do not know the .270 Win is the worlds best non-belted magnum. :stirthepot2:
 
Is this brass brand new? or 1,2,3x fired? Maybe the brass needs to be trimmed a mm or 2. I remember having a difficult extraction from one of my guns, and after all the problem-shooting, including taking apart a bunch of reloads to double check charges. I remeasured the brass and it was a bit overlength. There edge of the brass was "biting" the leade/rifling and it was causing a little bit of a "hiccup" upon extraction.
 
centerfire said:
And what's wrong with a lever action
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Nothing. I have one in a 30-30, but in a 7mm Rem Mag? The second worst gun my father ever owned was a Remington pump action 30-06. Kicked like a horse and shot like a shotgun. His worst gun was an army surplus Lee Enfield.
 
centerfire said:
Anyplace in Canada you can get these larrywillis dies
Click to expand...

I think the Larry Willis dies are a bit of a scam. He promotes them for preventing case head separation in belted magnums. Case head separation is caused by full length resizing a case over and over to give excessive headspace each time, and the resulting case stretching. It is aggravated by having an excessively long chamber. That is not fixed with a Larry Willis die. It is fixed by not oversizing your brass. Bump the shoulder 0.001" and no more.
 
centerfire said:
162 gr bullet ahead of 60 gr of IMR 4831 max load is 62 gr started at 57 gr. No signs of pressure. Does it with 139 gr bullets and IMR 4350 as well has a mark just above the belt can see it now. What kind of dies is everyone here using?
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If you can't extract the cartridge you have a sign of pressure. It normal to have a mark just above the belt. Your brass only expands so far down the case. Near the head the brass is thick enough that it limits expansion. Do you get the case sticking at 57 grains?

I use a full length Lyman die on my .264 WM and have loaded it for 50 years. No case head separations. No stuck cases in the chamber. Most of my cases are resized 7mm Rem Mag.

Are you using a neck sizing die only? or full length?

One more thought. IMR powder is quite temperature sensitive. Is it possible it has gotten warm since you tested the lower level loads? I recommend Hodgdon powder over IMR, as is is much less temperature sensitive. 4350 is a bit too fast for a 7mm. I would suggest H4831 or H1000.
 
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Just back down the load. I had the same problem with mine chambered in .308W. At one full grain under the published max, the brass was very difficult to extract, at two full grains under, the last 134 rounds I put through all just slid right out.

All the brass had been neck sized only and as I found out, the six that were hard to get out would not even chamber properly. Pulled the bullets and primers and full length sized them for next time.
 
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