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Discussion Starter · #1 ·
I just bought some HSM Bear Load....460S&W Mag factory Ammo. It is 325 grain LFN GC...I am familiar with it being LFN..( Lead Flat Nose) but have never encountered the GC..( Gas Checked)...I know a lot of you guys do your own loading and wonder if someone can explain what this means? Thanks guys...
 

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A gas check is a simple device added when non-jacketed bullets are used in high pressured cartridges like the one you have in front of you...to prevent the buildup of lead in the barrel which of course will aid in accuracy downrange.

During sizing, the gas check is crimped to the base of the lead bullet to help seal expanding gasses and to help protect the base of the bullet from deformation.

 

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Premium Member
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Discussion Starter · #3 ·
A gas check is a simple device added when non-jacketed bullets are used in high pressured cartridges like the one you have in front of you...to prevent the buildup of lead in the barrel which of course will aid in accuracy downrange.

During sizing, the gas check is crimped to the base of the lead bullet to help seal expanding gasses and to help protect the base of the bullet from deformation.

Thanks Shooter...Make sense now:cool:
 
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