LRRPF52 Wrote:If shooting unsuppressed with an 11.5", you need a large port than you would on a 12.5" because of plug dwell time and bore volume.
A number of variables come into play when shooting suppressed:
* Diameter of the suppressor baffles (is it cut oversize for .30 cal or 6.5mm?)
* Length of the suppressor (longer suppressor generally mates better with smaller port, shorter suppressor with larger port)
* What type of chamber you have
* Action spring weight/strength
* Buffer weight
I highly recommend the Bootleg Adjustable Gas Carrier either way, instead of messing with an adjustable block.
My 12" Faxon group buy barrel has a .068" port and cycles everything I've fed it suppressed, with it being better with the Bootleg carrier set to the suppressed position.
It's only .5" different between an 11.5" barrel, so it's a good data point for reference.
SAAMI chamber
.068" port
Ultra 5 .30 cal TBAC suppressor
Maxim Pistol Brace action spring and mini buffer (2.9oz)
Bootleg carrier
Gas tube is bedded
Ammo fired so far:
90gr TNT (won't cycle unsuppressed, 100% so far suppressed)
120gr Federal AE Match
123gr Hornady American Gunner
What suppressor will you be using?
I will only be shooting suppressed. I agree if I somehow end up with it being overgased I will get an adjustable BCG. I just want to see if I can get the gas port correctly drilled then no need for adjustable anything.
I have a JP silent capture spring with the standard spring. I think it is a type 2 chamber in the PF barrel I am ordering. I got the JP enhanced bolt in a fail zero BCG. Suppressor stats are below.
Gemtech Dagger
[COLOR="#FF0000"]Caliber: .300 WIN MAG
Diameter: 1.5"
Length: 8.8"
Weivht: 15.2 oz.
5/8-24 (2A) Threads
Material: Titanium
[/COLOR]