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  #31  
Old 06-23-2020, 10:04 PM
03man 03man is online now
 
Join Date: Feb 2015
Location: near Charlotte NC
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I think the 1.295 mentioned above is a typo by
Jeeperbob; as I questioned in my previous post.

1.295 is too long to allow a "properly" headspaced carbine to close!
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  #32  
Old 06-24-2020, 07:04 PM
luigi luigi is offline
 
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Location: arkansas
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I trim my cases to 1.280". If they are any longer than this I get some failure to fire due to bolt not locking up.
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  #33  
Old 06-24-2020, 07:08 PM
03man 03man is online now
 
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Location: near Charlotte NC
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luigi,
then you must have a short chambered barrel that was never final finished reamed.
JMHO.
A correctly headspaced barrel will close on the 1.290 "go" gage.

"Short chambered" barrels are 10 to 20 thousandths "shallow".
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  #34  
Old 06-24-2020, 10:43 PM
jeeperbob jeeperbob is offline
 
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Location: Vail, AZ
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Quote:
Originally Posted by 03man View Post
When reloading ammunition, I check the overall case length (without bullet) to insure uniformity to as close as 1.295 but you can trim to 1.285 case length if cases stretch too much.

Typo ?
Yes, it was miss typing on my part. I meant to say 1.285 is the case trim to length. My apologies.
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  #35  
Old 06-25-2020, 07:12 AM
309Carbine 309Carbine is offline
 
Join Date: Feb 2017
Location: South Mississippi
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Quote:
Originally Posted by 03man View Post
luigi,
then you must have a short chambered barrel that was never final finished reamed.
JMHO.
A correctly headspaced barrel will close on the 1.290 "go" gage.

"Short chambered" barrels are 10 to 20 thousandths "shallow".

This is living on the edge. All commercial carbine ammo I measure is from 1.284-1.286. Never know when that longer round might find itís way into that chamber. Like from a future owner if itís sold, or an heir when itís handed down.
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  #36  
Old 06-25-2020, 08:04 AM
03man 03man is online now
 
Join Date: Feb 2015
Location: near Charlotte NC
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Quote:
Originally Posted by 309Carbine View Post
This is living on the edge. All commercial carbine ammo I measure is from 1.284-1.286. Never know when that longer round might find itís way into that chamber. Like from a future owner if itís sold, or an heir when itís handed down.
"What" is living on the edge?
Trimming to 1.280" ?
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  #37  
Old 06-25-2020, 08:08 AM
309Carbine 309Carbine is offline
 
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Location: South Mississippi
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Not what you said 03. I meant that having a chamber that will not close on anything longer than 1.280 is risky.
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