Dan Sierpina

Yup, George shoots his Garand.

It's a blowback action. It's how they work.

Is your barrel ramped? I've been using Metalform or Brownell's 9MM mags (they are the same, the Brownell's are coated) and they just run. I do reload and have been for several decades. I guess I have a "feel" for the length of what will work. Try 1 or 2 of the Metalform or Brownell's mag. Don't spend a bunch of money on mags before you try a small sample of them.

The MOA lifter works! The owner had a hip replacement and it’s a small shop. You might have to wait a bit for the lifter or not.

That is good to know.

No Zero stop?

The lock is simply pull the turret up, then turn? Both friends had guns in racks when the "mishap" occurred.

I thought about this scope, I don't like uncapped turrets, not for a scope with a BDC reticle. There are a few "comedians" that play games. 2 friends that have run uncapped turrets have had their zero wander a hell of a lot.

I don't think it's just the barrel, but, the entire RDB system. I don't think it's reached it's full development yet.

I had Wolff extra power extractor springs as I use them in my normal AR's. Use a small screwdriver to push the large end of the spring into the extractor, they shouldn't launch on you that way.

I used a 507 for a while. My astigmatism was the reason I changed it to a prismatic sight. The sight worked well enough, just the lack of focus drove me nuts.

I've been following the threads on the RDB system with interest. I put a PCC together with a Leadstar Arms skeletonized receiver set and a parts that have been around mostly from 3 gun prize tables. I'm running the 16" barrel, with an Ace stock on a rifle length tube, Hiper Fire 24C trigger. I lowered the mag catch about .045 thousandths so the mags cleared the bolt. My Glock mags, I removed the taper so the bolt cleared with no problems, then took the step off of the follower so nothing hung up. Much like Les did. Magpul mags feed fine in it. I did make a coupler or splice for them, which allows 51 rounds to be loaded. I haven't changed the extractor spring yet, but, did replace the ejector with a chrome silicone spring from Brownells. The ejector springs get compressed, and look like a worm after a short time, unlike the same spring in an AR with a centerfire round. I'll look at the extractor spring shortly. Honestly, I haven't shot the gun a lot. I'm running a standard rifle buffer and spring at this time with no modifications. A Tubb flat spring is on the list to try when I get to it.

Nice rig Tony. Is that an Athlon scope on it?

USMC 1974, I was curious at to Tony's 6MM Grendel. I have an 8" twist Satern cut rifled barrel on mine. I've not shot it much, but will likely stay with the 123ish bullets for it.

Whose barrel are you using and the twist on this?