The feed ramp is the cause of the bulge. That was already pointed out by someone who actually knows what they are talking about. Do you own one of these rifles? Once I simply looked at mine it was obvious. You should stop giving bad advice. You don't just return a gun without an RMA and since this is normal they are pretty unlikely to issue one.
Chiappa 1892 44mag brass bulge.
- Thread starter Gillen1
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The feed ramp is the cause of the bulge. That was already pointed out by someone who actually knows what they are talking about. Do you own one of these rifles? Once I simply looked at mine it was obvious. You should stop giving bad advice. You don't just return a gun without an RMA and since this is normal they are pretty unlikely to issue one.
Sfrc sent me a rma and the shop that sold it to me is going to ship it for me. I can probably accept the generous chamber theory, but the crooked site is also an issue for me. I expect the barrel to at least be straight. It might need to be turned a bit more if can be because it seems like the rear site is also off a bit.
I blew past your crooked sight comment. That is definitely not cool. Chiappa guns have so many issues it seems, especially considering the price point.
It probably won't change anything for you, but FYI - I just stumbled across some of Steve Young's posts on this topic while looking for load data elsewhere. This is "Nate Kiowa Jones" Steve, from Steve's Gunz, the CAS gunsmith, he knows his stuff. I'll paraphrase, and you can bet I'll have some details wrong:
Apparently this brass bulging is very common with recent and current production leverguns. The chambers are cut quite large, but still within SAAMI spec. Brass is sized well under these dimensions when loaded into ammunition. When fired, the brass expands (and contracts) unevenly due to inconsistencies in the case wall, resulting in the bulged cases. He says he's never encountered a rifle where the chamber producing this bulged brass was out of round, or larger than SAAMI spec.
The same oversized chambers are generally responsible for heavy sooting on cases and gas blow by, specifically with lower pressure loads. I wish I had known this years ago...
h ttps://www.levergunscommunity.org/viewtopic.php?t=25694
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Super helpful, thank you.
Just an update to the thread, my local shop confirmed for me the front sight has been placed on incorrectly. Barrel and rear sight are straight though. Instead of sending it away I may see if local shop can do anything, or just see if I can adjust the rear sight enough to. Make up for the lean. I’m replacing the rear ladder sight with a skinner peep anyway so I may be in luck.
Rifle shot well and extracted well.
Just an update to the thread, my local shop confirmed for me the front sight has been placed on incorrectly. Barrel and rear sight are straight though. Instead of sending it away I may see if local shop can do anything, or just see if I can adjust the rear sight enough to. Make up for the lean. I’m replacing the rear ladder sight with a skinner peep anyway so I may be in luck.
Rifle shot well and extracted well.
nowarningshot
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Fail to see how a.feed ramp would.cause it. Cartridge is fully within the chamber at detonation.
Bummer. Personally I'd think hard about the warranty option then, I'd be annoyed living with that on a >$1000 gun.
You can get a bit of adjustment by filing one side of the front sight, of course this affects your sight picture (sometimes for the better).
It got shipped to SFRC for warranty on Friday. So hopefully they can remove the site and put it on properly for me. Will post back here with results.
Iron Sighted
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I have a Rossi R92 rather than the Chiappa but definitely see the sooting that Steve refers to. Even with a relatively high pressure load for 45 Colt(325gr WFN GC bullet at 1450fps from a 16" barrel). I also see a small bulge around the case head in my carbine as well.
Check the headspace, the length of the expansion might be excessive, but the bulging in of itself isn't any worry.
Well it’s been sent in to SFRC. I’m sure they will check it out. If it comes back and still bulges, I will just have to accept it and buy more brass and expect a lower case life.
You should find that some types of brass will deform less than others, too. If I was regularly using hot rod loads I might try to find brass that seems to handle it better. If it's all lower pressure loads, you might not find it's a significant issue.
I saw it recommended that you can also just neck size the brass to help minimize the issue. I don't know if it's worth worrying about, honestly.
Update.
Got it back from sfrc. They said the front sight base was square to receiver but blade was not straight. They bent it straight. I’m still sure the sights are not correct as they look canted but it shoots straight so I’m not going to care any further.
As for the brass bulge all they said was fired brass shouldn’t be reinserted in the chamber and reloading voids warranty.
I have not tried using the loads I used originally, but have loaded some with H110 with same
Campro bullets and cases. Bulges do not seem as bad with this load. Will try the unique loads again to see if it’s a load issue or a gun issue.
Got it back from sfrc. They said the front sight base was square to receiver but blade was not straight. They bent it straight. I’m still sure the sights are not correct as they look canted but it shoots straight so I’m not going to care any further.
As for the brass bulge all they said was fired brass shouldn’t be reinserted in the chamber and reloading voids warranty.
I have not tried using the loads I used originally, but have loaded some with H110 with same
Campro bullets and cases. Bulges do not seem as bad with this load. Will try the unique loads again to see if it’s a load issue or a gun issue.
I have one of the above. I just checked and the front sight on mine seems to be a bit bent as well. I'm not sure if it actually shoots "straight" or not, as all I've shot is a few rounds at a gravel pit. I do know, however, that the barrel was badly leaded. I am in the process of cleaning it now. Action on mine is very smooth.
The S.A.A.M.I. chamber specs are larger for 44 mag rifles than they are for revolvers. The 2 Browning 92’s I had in 44 mag. required .434 dia cast bullet dia. My Ruger and S&W revolvers .430 is fine.
I am not sure on case base spec’s, but Chiapas is not under SAAMI jurisdiction, nor Rossi. I am not sure about Miroku , but I suspect they use SAAMI spec reamers.
I am not sure on case base spec’s, but Chiapas is not under SAAMI jurisdiction, nor Rossi. I am not sure about Miroku , but I suspect they use SAAMI spec reamers.
