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After coaching a couple guys with chambering, I'd recommend separating the machining processes into three categories. Note: the first two should be practiced on barrel drops or old barrels with the chamber parted off (make sure diameter after removing full chamber is enough to form a shoulder...

Good suggestions on Wilson or Green Mountain (I think Green Mountain blanks are no taper only) blanks. My suggestion is when you turn your barrel for your Savage, turn it with a shoulder. It's good practice to take measurements from the action and turning barrels for non-barrel nut rifles. I...

I doubt there will be any 35 round strings of fire in any legitimate precision rifle class. 200 rounds in an 8 hour training day is 25 rounds an hour. Plenty of time for barrel to cool off. I personally don't put much faith in barrels coolers, just leave the bolt open, it'll cool off just fine.

Barrel popped off after cutting the relief groove.

A couple of points. First, the Viper is a decent vise but from my experience the coating limits it's grip at the limits. Second, roughly half the Tikka factory barrels I've removed have required a relief groove to be cut just past the shoulder to relieve some of the tension. Lastly, and this...

Good trigger-puller. That was a foggy match.

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...