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I'm resurrecting my own thread here - so everyone back off! :)
I appreciate all the great info. I'm primarily interested in barrels and gas blocks, not complete uppers - I plan on building this upper. What is a good resource for reasonably priced .300 barrels? I know Green Mountain at one time made some barrels (probably for another vendor) but usually they don't thread their barrels.
I haven't made my mind up if I'm going to build a .300 in 10.5" and SBR, or 16" and keep my $200 for the suppressor. One thing I'm still unclear on is the gas block location. From what I would presume - having a pistol located gas block would allow me to squeeze ever bit of pressure out of subsonic loads, but I would need an adjustable block for supersonic rounds (which I definitely will want to fire hog hunting). Is there any disadvantage to a pistol length gas block? One question I'm having trouble with is what kind of hand guards am I limited to with a pistol located gas block? I'm assuming a large free float would probably work regardless?
Lastly - I'm sure this question gets asked all the time (I combed the forum trying to find it) - What the hell is the difference between all these .300 variations? .300 Whisper, .300 fireball, and now we have .300 blackout? I'm assuming it's just a name rights issue, but do these actually have any differences? My concern primarily revolves around being able to find dies to reload and case form.
I really appreciate any help you guys can lend.
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