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springfield saint 300blk issues.

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jonrose3

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Not sure if this is the correct area to ask. But I just got my saint ar pistol in 300blk and I'm constantly having issues...

Every couple rounds ill either have the primers blowing off the case after its been fired and the next round gets jammed in with the primer. Or ill have one round stuck and another jammed in under it. I'm using Sig Sauer 300blk 125gr supersonic ammo.

Now I'm pretty new to firearms so I have no idea how to fix this, any advice or fixes anyone is aware of?
 
jonrose3 said:
Not sure if this is the correct area to ask. But I just got my saint ar pistol in 300blk and I'm constantly having issues...

Every couple rounds ill either have the primers blowing off the case after its been fired and the next round gets jammed in with the primer. Or ill have one round stuck and another jammed in under it. I'm using Sig Sauer 300blk 125gr supersonic ammo.

Now I'm pretty new to firearms so I have no idea how to fix this, any advice or fixes anyone is aware of?
Click to expand...
Do you have any pictures of the casings? It sounds like a high pressure/over pressure ammo. Sounds like also the bolt is trying to unlock with the bores pressure being to high. I don’t know if you have an adjustable gas block or not?
 
Sounds strange that sub ammo would over pressure! Gas port size plays a part in blown primers. Find out what ammo testing SA did. I have some Hornady factory ammo that does the same thing with rifle length gas system. Worked fine with aero precision barrels, but not criterion, BSA and a few others. Proof barrel with the +2 gas length did the same thing.
 
I had issues with my Saint Victor Pistol in 300 BO but not what you’re describing. My Saint Victor came with an adjustable gas block so you may need to look at that if yours does. Contact Springfield Armory for the adjustable gas block bolt. Did your gun come with a long T-handled Allen wrench? If so your gas block is adjustable.
 
BangBang said:
Do you have any pictures of the casings? It sounds like a high pressure/over pressure ammo. Sounds like also the bolt is trying to unlock with the bores pressure being to high. I don’t know if you have an adjustable gas block or not?
Click to expand...
I don't have pics of the casings today I was shooting elsewhere but they do have the casings and ill be there tomorrow so I can show you then. I can also send a picture real fast of my gun because I'm rather new to this so idk anything about the gas system stuff.
 

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Keystone19250 said:
I had issues with my Saint Victor Pistol in 300 BO but not what you’re describing. My Saint Victor came with an adjustable gas block so you may need to look at that if yours does. Contact Springfield Armory for the adjustable gas block bolt. Did your gun come with a long T-handled Allen wrench? If so your gas block is adjustable.
Click to expand...
Just looked online. Says its a "pinned gasblock"
 
jonrose3 said:
I don't have pics of the casings today I was shooting elsewhere but they do have the casings and ill be there tomorrow so I can show you then. I can also send a picture real fast of my gun because I'm rather new to this so idk anything about the gas system stuff.
Click to expand...
Ok that’s a Saint Victor I believe with an adjustable gas block. Have you pulled it apart to clean and check your pressure tube and how it mates up with your BCG?
 
TEXASforLIFE said:
Sounds strange that sub ammo would over pressure! Gas port size plays a part in blown primers. Find out what ammo testing SA did. I have some Hornady factory ammo that does the same thing with rifle length gas system. Worked fine with aero precision barrels, but not criterion, BSA and a few others. Proof barrel with the +2 gas length did the same thing.
Click to expand...
OP indicated super ammo not sub
 
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