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Posted: 12/10/2016 9:20:04 PM EDT
[#1]
My PSA .308 barrel is really tight. From what I've found the fired brass comes out at SAMMI specs, or just a little bit under.
When I set up my sizing die, I found the brass fits below the low side of case gauge in order for it to feed properly in the rifle. The Winchester white box which is the only factory ammo this gun has seen, just happened to be shorter than spec. So yeah, I believe that the chamber could be that tight. I almost wonder if maybe they did not ream it all the way. |
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Posted: 12/11/2016 12:23:42 AM EDT
[#2]
Take a couple of sized .458/9 cases and see if they chamber in your new barrel.
That will tell the tale. |
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Posted: 12/13/2016 11:08:30 PM EDT
[#3]
If I ride the charge handle home its a no go.
If i drop the bolt its fine, but measures .456 after. Next move? Pull thousands or rounds? |
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Posted: 12/13/2016 11:13:10 PM EDT
[#4]
Yes
If you don't have one, get a Hornady collet bullet puller. Works easier than the RCBS and light years above a kinetic hammer puller. |
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Posted: 12/14/2016 12:26:52 AM EDT
[#5]
Buy a new barrel that they chamber in?
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Posted: 12/14/2016 4:11:03 AM EDT
[#6]
It is a new barrel . :(
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Posted: 12/14/2016 8:19:05 AM EDT
[#7]
I would contact the vendor/supplier to see if they are satisfied that it is within spec before pulling down thousands of rounds.
If it is within spec, I would probably seriously consider selling that barrel and buying a different one, though there are no guarantees that chambers will match up one way or the other. |
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Posted: 12/14/2016 1:39:11 PM EDT
[#8]
Consider swapping bolts. The new barrel's bolt may shorten the headspace on your older barrel and the old bolt will probably lengthen the headspace on your new barrel. They'll meet somewhere in the middle.
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Posted: 12/14/2016 3:57:20 PM EDT
[#9]
Im using the old bolt, but may try another.
It seams to shoot fine. Guess someone who dont reload would never have noticed. What bothers me is its reading .002 shorter than factory loads. The other thing is the vendor never answers the phone. Im calling them now.. |
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Posted: 12/14/2016 9:20:06 PM EDT
[#10]
My .308 is like that, It's going to have it's own brass.
Usually with my other semi auto's it's just one size fit's all, but not this gun. I don't like it, but it is what it is. 
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Posted: 12/15/2016 7:22:40 AM EDT
[#11]
Quote HistoryQuoted:
If i drop the bolt its fine, but measures .456 after. What's the problem? |
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Posted: 12/15/2016 10:52:37 AM EDT
[#12]
Quote HistoryQuoted:
What's the problem? Its not right.. To size the brass corectly I would have to machine off the end of the sizing die. Anyone have a Hornady comp tool and a set of "go/no go gauges" that could measure them for me? Im sitting on hundreds of rounds of Barnes TTSX and a barrel swap AGAIN would be cheaper than starting over. |
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Posted: 12/15/2016 11:17:53 AM EDT
[#13]
5.56 Go gauge is about the only way you are going to know anything definitive. Barring that if you want to do it country style you need to remove the ejector plunger, place the rim of the cartridge under the extractor, and then see if it will go into battery with light pressure. |
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Posted: 12/15/2016 11:50:10 AM EDT
[#14]
Do you mean 1.4XX, your headspace measurements? What is .4XX?
SAAMI spec for the cartridge is: 1.4596" to 1.4666" SAAMI spec for the chamber is: 1.4636" to 1.4736" If your chamber really is 1.455", it is out of spec. Return it to the supplier for a remedy/repair. You could always resize the body without disassembling the rounds by using a body-only die. Even then, your rifle is out of spec and always will be. Get it fixed. |
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Posted: 12/15/2016 4:12:21 PM EDT
[#15]
Quote HistoryQuoted:
Do you mean 1.4XX, your headspace measurements? What is .4XX? SAAMI spec for the cartridge is: 1.4596" to 1.4666" SAAMI spec for the chamber is: 1.4636" to 1.4736" If your chamber really is 1.455", it is out of spec. Return it to the supplier for a remedy/repair. You could always resize the body without disassembling the rounds by using a body-only die. Even then, your rifle is out of spec and always will be. Get it fixed. Thank you! Not sure how the shoulder on the brass would get pushed back so far without it being messed up. I have called and emailed them with no responce 
Only took a month last time.... Last barrel the extention came loose and they replaced the barrel |
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Posted: 12/16/2016 8:50:29 AM EDT
[#16]
Quote HistoryQuoted:
Do you mean 1.4XX, your headspace measurements? What is .4XX? SAAMI spec for the cartridge is: 1.4596" to 1.4666" SAAMI spec for the chamber is: 1.4636" to 1.4736" If your chamber really is 1.455", it is out of spec. Return it to the supplier for a remedy/repair. You could always resize the body without disassembling the rounds by using a body-only die. Even then, your rifle is out of spec and always will be. Get it fixed. Cant measure headspace with the Hornady tool. You are really only trying to get a relative change of a fired case to a sized case. |
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Posted: 12/16/2016 11:20:57 AM EDT
[#17]
Quote HistoryQuoted:
Cant measure headspace with the Hornady tool. You are really only trying to get a relative change of a fired case to a sized case. Quote HistoryQuoted:
Quoted:
Do you mean 1.4XX, your headspace measurements? What is .4XX? SAAMI spec for the cartridge is: 1.4596" to 1.4666" SAAMI spec for the chamber is: 1.4636" to 1.4736" If your chamber really is 1.455", it is out of spec. Return it to the supplier for a remedy/repair. You could always resize the body without disassembling the rounds by using a body-only die. Even then, your rifle is out of spec and always will be. Get it fixed. Cant measure headspace with the Hornady tool. You are really only trying to get a relative change of a fired case to a sized case. The above is correct. This tool (Hornady Comparator) is called a "Headspace gauge" incorrectly by me and other posters in a slang kind of way. Best used for setting your sizing die, not for determining your chamber dimensions. |
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