I grabbed a Rubber City high pressure bolt to replace my standard bolt. Do I need a different firing pin?
20” Aero M5 build, have some questions
- Thread starter Bhobbs
- Start date
depends on if your current bolt is HP or not.
Bottom Line: you'd use an HP firing pin with an HP bolt, and a std LR-308 DPMS-style FP with a non-HP DPMS-pattern bolt.
a non-HP FP won't fit in a HP bolt.
some folks have indicated that some HP bolts use a proprietary HP FP. I've found that the HP FP interchanges between Toolcraft (from Arm-or-Ally), Aero, and Brownells HP bolts. I'd suspect that a HP RCA bolt/FP would fall into that same family, but have no first-hand experience as such. You'd be best off getting the right FP from RCA, just so that you know it's correct.
I was under the impression that most of the time, when you buy an HP bolt, it comes with a HP FP, for the above reasons.
Just about done with my M5 build. Decided to do a family picture with my 6.8 and Glock 21.
Just need to pick a scope mount.
I ordered a Recon S 20 MOA mount but I’m being told it’s now backordered until May. I have a trip planned for April, and would like to take this out for a test. Any other recommendations for a 20 MOA mount, 30mm tube 50mm objective?
it looks like ADM has that one in stock, 30mm, 20MOA Recon-S. but then you're paying full MSRP, $227. ouch! how desperate are you?
ADM also has 40MOA version for $199, and I've used that one also for my long-distance set-ups, but you'll have to make sure you have enough elevation travel in your scope before you get that one. I think it works out to if the scope has 25 mils of total elevation travel, and your rifle, scope mount, and scope combo is real close to mechanical zero, then it works. just off the top of my head. I forget the math ...
I've used the 40MOA version with my Vortex Venom, and my Athlon Cronus, 56mm objective scopes. FWIW.
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Got the scope mounted temporarily. Of course I couldn’t find my level kit or torque wrench. Just need a bipod and it’s all set.
Here is the finished rifle. Added an Atlas bipod on an MLOK rail section, leveled the scope and picked up 200 rounds of 175 FGMM. Now I just need time to actually hit the range.
Finally took the rifle out this morning. Put about 40 rounds of 175 FGMM through it and had no issues. All 40 fed, fired and extracted. The wind was blowing my target around pretty good so I didn’t get a solid zero. Got it roughly dialed in. Ranged a rock on a hillside at about 1000 yards and took a few shots at it. Hit 3 of 10 but seeing splash was hard. Either way, it went better than I expected. Very happy with the build.
