98Z5V Posted May 16, 2021 Report Share Posted May 16, 2021 2 hours ago, willbird said: Really digging on the Guntec USA rails. Same here - they just work. And don't break the bank. Quote Link to comment Share on other sites More sharing options...
willbird Posted May 18, 2021 Author Report Share Posted May 18, 2021 The whole reason for building this rifle really was to make something that would fit into this soft case. Any reason will do but that was it :-). So it does fit :-). General idea is a truck gun. In my state with CCW I can keep it in the vehicle in the case locked and loaded legally. Quote Link to comment Share on other sites More sharing options...
willbird Posted May 18, 2021 Author Report Share Posted May 18, 2021 Loaded some ammo today. Quickly worked up to the maximum LeverRevolution load with 108 ELD. I have another 6mm arc I built using the "leftover" Brownells 14.5 barrel which has 1/8 twist, it will get it's own thread but it comes into play here. The 14.5 functioned and locked back on an empty magazine, the 12.5 did NOT. Hmm. Took them apart and checked gas port size (new rule will be to check WHILE assembling). Hmm 14.5 has .076" gas port, the 12.5 has .0635". Both carbine gas. OK....drilled the 12.5 out to .076 and it too functions and locks back on an empty magazine :-). Good excuse to build more than 1 rifle at a time :-). Quote Link to comment Share on other sites More sharing options...
98Z5V Posted May 19, 2021 Report Share Posted May 19, 2021 11 hours ago, willbird said: Hmm 14.5 has .076" gas port, the 12.5 has .0635". Both carbine gas. OK....drilled the 12.5 out to .076 and it too functions and locks back on an empty magazine :-). Good excuse to build more than 1 rifle at a time :-). I think my 6 ARC 12.5" Faxon barrel was 0.070" gas port, carbine gas, 0.750" journal. I didn't post that in the gas port info thread, but I'm pretty sure I posted it in the build thread. No harm going over, you know it's gonna work. Quote Link to comment Share on other sites More sharing options...
willbird Posted May 19, 2021 Author Report Share Posted May 19, 2021 10 minutes ago, 98Z5V said: I think my 6 ARC 12.5" Faxon barrel was 0.070" gas port, carbine gas, 0.750" journal. I didn't post that in the gas port info thread, but I'm pretty sure I posted it in the build thread. No harm going over, you know it's gonna work. With two rifles same caliber I just decided to make them the same :-). Figured if the 14.5 worked it had 2" more barrel time until bullet exit so the 12.5 should not end up "more gassed" than the 14.5. It was kinda a leap of faith and "hey it's mine" kinda decision :-). Worst case would have been needing a heavier buffer or an adj gas block :-). That is the first gas port I ever drilled :-). Quote Link to comment Share on other sites More sharing options...
98Z5V Posted May 19, 2021 Report Share Posted May 19, 2021 1 hour ago, willbird said: That is the first gas port I ever drilled :-). You need to hang out with me more, man - I punch these things up all the time. Quote Link to comment Share on other sites More sharing options...
willbird Posted May 19, 2021 Author Report Share Posted May 19, 2021 6 hours ago, 98Z5V said: You need to hang out with me more, man - I punch these things up all the time. Well I have all the machinery to do it :-), just got lucky so far I guess :-). I remember looking at it while assembling thinking "man that hole is tiny" lol. Not sure what they were thinking. Quote Link to comment Share on other sites More sharing options...
willbird Posted May 19, 2021 Author Report Share Posted May 19, 2021 Ordering a linear comp :-). Pretty sure the brake would not be fun shooting inside my Tacoma lol. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.