Recent content by Praeger

With due respect to your trustworthy smith, what specs do you need? Your brake is probably 5/8-24, most muzzle devices .600 in length. That's it. Edit: Here's the spec from Surefire - Reign Over Recoil.The MB762SSAL/RE enables attachment of FA762SS suppressors to Armalite AR-10 and to other...

I wish I could upload the video, but you are correct in that as soon as the ejector blade pushes the left side of the case the entire case spins (mostly in the open ejection port) until the neck strikes the bolt head. When the case begins to spin, the right side that is captured by the...

The extractor was updated. No updates that I'm aware of to the ejector.

Recently built a CDG 6 BRA rifle and am working through the somewhat anemic ejection of the CDG (at least with the short cased 6 BRA). After taking a slow motion video of the ejection, it appears that the case makes a 180 degree spin whereupon the neck of the case (now rearward facing) bounces...

I'd like to see the difference between the two (standard vs magnum) extractors. I suspect the only difference is the radius, it shouldn't create a different gap between the extractor and the breech. To your point though, I don't think the extractor could cause a light primer strike because the...

I don't think it's the extractor, but to check for rubbing put some sharpe ink on the face of the extractor and repeat. If it's rubbing the breech, you'll see some ink removed.

This. Another way of checking (and determining the extent of the extractor interference) is to remove barreled action, unscrew barrel a couple of revolutions, then with the bolt closed slowly screw in the barrel. You'll feel it bottom out against the extractor - or if the interference is...

Threaded 5/16-24. Terminus knob is male threaded, most aftermarket are female threaded. Just connect using a 5/16-24 set screw. Google bolt knobs, dozens to choose from.

The Lone Peak Fuzion is a smooth action, but I completely disagree that the Zeus (or any Terminus) is "prone to binding", there are none smoother. Get in touch with Joel, he'll take a look at it and if there is a problem he'll take care of it. I've built dozens of rifles with Terminus...

The pull weight of the trigger has no relation to the bolt lift weight. Bolt lift weight is a function of the cocking piece moving up the the cocking ramp which is retracting the firing pin assembly/compressing the firing pin spring. Although not clear on what you mean by the firing pin...

It looks like you plan on using a flat head screw by countersinking the screw recess. KRG designed their chassis to adjust magazine fit by movement of the forend and trigger guard a small amount each to allow fine tuning of magazine fit. Since the countersunk screw on the trigger guard will no...

It's a pretty easy fix with a mill. Just need to inlet the aluminum backbone and trigger guard screw as shown on my KRG Bravo. Also a little inletting just in front of the rear action screw. I also milled down the trigger guard front set screw. The Dremel "inletting" on the right side below...

I doubt they use a die to thread their barrels. There's no way to accurately cut the threads concentric with the bore since a die registers from the OD of the barrel shank. You might be seeing crystal remnants from the exterior phosphate treatment that wick into the threads.

Gotta say I've never heard of a reamer being "too sharp". If the reamer is chattering, it usually means the bushing is undersized. It could be a mis-cut reamer where one cutting edge is cutting more than the others, or the primary cutting angle is too shallow. As an outlier, I'm sure you...

Completely agree with everything . . . except 3-phase. A Variable Frequency Drive will convert single phase to 3 phase. Inexpensive, easy to set up and most will allow programming such as spin up/down time.