458 socom bl length

Building a 458 socom ar15. I planned on a tromix barrel and bolt. I was looking to figure out if I should get an 8" or 10.5" barrel. I plan on shooting a lot of subs amd suppressed. My lower is already an SBR. Also wondering if you can run a Maxim defense pdw stock with the jp scs with 458socom. Thanks
 
Might want to check barrel restrictions for your suppressor, I have a Hybrid and went 16" TROMIX for that reason.

Even subsonic, 458 SOCOM is not very quiet. FYI, fun, I like mine, but realistic expectations and all.

A PDW sounds painful and I would worry about the strength of the mechanism, but have not tried it.

I would go longer rather than shorter, I think an 8" would be a flamethrower. My 16" with can is still quite handy.
 
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I have a 12 inch tromix. Runs great, but as said above, is not particularly quiet with any loads that run the action. Pistol length gas with adjustable block, have tried a couple different cans.

A 16 inch bolt gun with fast powder or longer ar15 barrel will make less noise of course... just depends on priorities.

When I got mine, the 12 inch barrel was supposedly more reliable than going short like 8 or so. Not sure if still true though.

Very happy with the 12 and would definitely go that way again. It's great for deer hunting up close in brush here.
 
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Kinda sounding like it's kinda shitty, at least for an sbr. Probably just stick with my 8.6 then, quiet and a kitten. My problem is that I have the sbr lower, and I have no idea what I wanna do with it. I don't wanna be super boring and do a 300bo but I'm open to it. Considering a pcc style.