RegionRat
Gold $$ Contributor
Are we talking about a POF gas gun?
I don't follow POF very close any more but I am not sure what barrel your friend's rig is wearing based on 18" or 24"?
Still a good idea to baseline the rig with something like FGMM ammo in either 168 or similar just to get an idea of what you are working with. At mag length, we should be able to match that stuff and do better on most samples with a handload.
In so many words, a factory 308 gas gun should be able to perform with a classic M14 SR load.
A good guess is to try the following and then explore tuning options.
I would start a gas gun with virgin mil-spec brass if possible. These are harder on brass than bolt guns and your friend will have to learn to watch the brass life and reliability issues.
If you don't find FGMM ammo, you can try the following for a starting point or baseline to see what you are working with.
IMI brass from their factory ammo or virgin Mil Spec brass
41.5 H4895
CCI BR2 or something like a CCI 34
Sierra 168 at 2.800 COAL, may or may not want to try a light taper crimp but I have never "needed" one for an AR-10 or M14.
This should give you an idea of the rig's personality and then you will know how you stand when you feed it a varmint bullet. A POF should digest the standard loads at standard mag length. How it will do with a varmint bullet who knows. It should hold a 10 ring or better with the above out to 300 yards and sometimes these will go out to 600 but typically require tuning to do their best past 300.
Good Luck to you and your friend. If the coyotes and cats come calling, AZ is on my route so send up a flare if he gets into trouble.
I don't follow POF very close any more but I am not sure what barrel your friend's rig is wearing based on 18" or 24"?
Still a good idea to baseline the rig with something like FGMM ammo in either 168 or similar just to get an idea of what you are working with. At mag length, we should be able to match that stuff and do better on most samples with a handload.
In so many words, a factory 308 gas gun should be able to perform with a classic M14 SR load.
A good guess is to try the following and then explore tuning options.
I would start a gas gun with virgin mil-spec brass if possible. These are harder on brass than bolt guns and your friend will have to learn to watch the brass life and reliability issues.
If you don't find FGMM ammo, you can try the following for a starting point or baseline to see what you are working with.
IMI brass from their factory ammo or virgin Mil Spec brass
41.5 H4895
CCI BR2 or something like a CCI 34
Sierra 168 at 2.800 COAL, may or may not want to try a light taper crimp but I have never "needed" one for an AR-10 or M14.
This should give you an idea of the rig's personality and then you will know how you stand when you feed it a varmint bullet. A POF should digest the standard loads at standard mag length. How it will do with a varmint bullet who knows. It should hold a 10 ring or better with the above out to 300 yards and sometimes these will go out to 600 but typically require tuning to do their best past 300.
Good Luck to you and your friend. If the coyotes and cats come calling, AZ is on my route so send up a flare if he gets into trouble.