Neck tension? Crimp?

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11 years 3 months ago #27621 by Scorobe2916
Replied by Scorobe2916 on topic Neck tension? Crimp?
I am running near a max charge of Varget right now, and I really don't like working up loads till I start seeing pressure signs:( Any idea if adjustable gas blocks help with FPS? I know I've read most ar's are over gased AR10 especially ? Probably wouldnt gain me more than 50 FPS at the most. Powder is just so hard to find right now and I have 6#'s of Varget. All the other powders I have are way slower burning than Varget, like 4831,4350,414, pretty sure they are to slow for a gas gun.
Gues my chrono could be giving me screwy info too.

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11 years 3 months ago #27623 by SOC
Replied by SOC on topic Neck tension? Crimp?

Scorobe2916 wrote: I am running near a max charge of Varget right now, and I really don't like working up loads till I start seeing pressure signs:( Any idea if adjustable gas blocks help with FPS? I know I've read most ar's are over gased AR10 especially ? Probably wouldnt gain me more than 50 FPS at the most. Powder is just so hard to find right now and I have 6#'s of Varget. All the other powders I have are way slower burning than Varget, like 4831,4350,414, pretty sure they are to slow for a gas gun.
Gues my chrono could be giving me screwy info too.


I'd verify my velocity data with another chrono.

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11 years 3 months ago #27628 by LebbenB
Replied by LebbenB on topic Neck tension? Crimp?

SOC wrote:

Scorobe2916 wrote: I am running near a max charge of Varget right now, and I really don't like working up loads till I start seeing pressure signs:( Any idea if adjustable gas blocks help with FPS? I know I've read most ar's are over gased AR10 especially ? Probably wouldnt gain me more than 50 FPS at the most. Powder is just so hard to find right now and I have 6#'s of Varget. All the other powders I have are way slower burning than Varget, like 4831,4350,414, pretty sure they are to slow for a gas gun.
Gues my chrono could be giving me screwy info too.


I'd verify my velocity data with another chrono.

This.

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11 years 3 months ago #27630 by Scorobe2916
Replied by Scorobe2916 on topic Neck tension? Crimp?
So it sounds like you all think 2700 or their abouts is more likely?

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