Just finished the new build, which weighs in at a respectable 6.3 lbs. unloaded and, currently, unscoped. I'm just waiting on brass and the new set of rings.
Specs:
Seekins SP223 lower/MCSR upper, MCSR v2 9" rail, Seekins adjustable gas block, ARP 16" Scout 6.8x43 barrel, ARP bolt, Wilson Combat parkerized BCG, Geissele SSA-E trigger, Super-Stoc, Ergo grip, Spike's Tactical melonited gas tube, Spike's Tactical Heavy buffer, Sprinco red spring, YHM thread protector.
The MCSR rail is incredibly light but sturdy. Feels like a monolithic. I've always been a fan of Seekins rings and DBMs but am impressed as all get out with the quality of their upper/lower. The fit between the upper and the ARP barrel is really tight. Seekins uses a titanium nut with 1 1/8" flats rather than a conventional barrel nut and the receiver threads are inside. I had to order a crows foot to torque it down since nobody local had one that big. (Seekins posted somewhere to torque between 45-50 ft. lbs. and not to use any lubricant). There's virtually no wobble between upper and lower and the Super-Stoc does seem to lock down tighter than my CTRs. About an ounce lighter too.
The rear takedown pin required cutting a few coils off the spring. For now, and no plans to change, I went with a thread protector to keep weight and length down.
I'm eager to get out shooting, but UPS delayed my SWFA shipment until Friday and USPS has managed to at least temporarily lose my brass. (I'm being optimistic). I have three powders to try (H335, N530, and Alliant 1220-R, magnum small rifle primers and Berger 130 gr. Classic Hunters. The goal is to develop an accurate, high velocity hunting round that's still safe and doesn't beat the brass up too much.
Specs:
Seekins SP223 lower/MCSR upper, MCSR v2 9" rail, Seekins adjustable gas block, ARP 16" Scout 6.8x43 barrel, ARP bolt, Wilson Combat parkerized BCG, Geissele SSA-E trigger, Super-Stoc, Ergo grip, Spike's Tactical melonited gas tube, Spike's Tactical Heavy buffer, Sprinco red spring, YHM thread protector.
The MCSR rail is incredibly light but sturdy. Feels like a monolithic. I've always been a fan of Seekins rings and DBMs but am impressed as all get out with the quality of their upper/lower. The fit between the upper and the ARP barrel is really tight. Seekins uses a titanium nut with 1 1/8" flats rather than a conventional barrel nut and the receiver threads are inside. I had to order a crows foot to torque it down since nobody local had one that big. (Seekins posted somewhere to torque between 45-50 ft. lbs. and not to use any lubricant). There's virtually no wobble between upper and lower and the Super-Stoc does seem to lock down tighter than my CTRs. About an ounce lighter too.
The rear takedown pin required cutting a few coils off the spring. For now, and no plans to change, I went with a thread protector to keep weight and length down.
I'm eager to get out shooting, but UPS delayed my SWFA shipment until Friday and USPS has managed to at least temporarily lose my brass. (I'm being optimistic). I have three powders to try (H335, N530, and Alliant 1220-R, magnum small rifle primers and Berger 130 gr. Classic Hunters. The goal is to develop an accurate, high velocity hunting round that's still safe and doesn't beat the brass up too much.
