Hello Everyone,
I recently purchased a 7.5" barreled .300 Blackout upper for an SBR.
But doing research for various Blackout loads show 16" barrels as the standard used with published reloading data. And what those published loads show varies greatly.
So I am posting here in the hopes that someone who is running an SBR chambered in Blackout will share what they have learned.
I plan on shooting both Sonic loads (not suppressed) and Sub Sonic, either suppressed (ideally) or not suppressed if I can get the thing to function with SS loads.
Powder / bullet weight suggestions are greatly appreciated. Specially interested in Sub Sonic Load data with bullets in the 147-180 grain range.
(While it may not be relevant my gas bleed off hole in the barrel is .105")
Regards,
Rob
I recently purchased a 7.5" barreled .300 Blackout upper for an SBR.
But doing research for various Blackout loads show 16" barrels as the standard used with published reloading data. And what those published loads show varies greatly.
So I am posting here in the hopes that someone who is running an SBR chambered in Blackout will share what they have learned.
I plan on shooting both Sonic loads (not suppressed) and Sub Sonic, either suppressed (ideally) or not suppressed if I can get the thing to function with SS loads.
Powder / bullet weight suggestions are greatly appreciated. Specially interested in Sub Sonic Load data with bullets in the 147-180 grain range.
(While it may not be relevant my gas bleed off hole in the barrel is .105")
Regards,
Rob