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There is NO definitive answer. As the law reads maynah's statement is correct. However, I have read and heard of may people being harrassed for such minor cosmetic alterations as refinishing the...

I had looked for these pics when you originally posted this thread and wasn't able to find them.. But there they are now.

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Three steps in the progression...

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Raw... As I got...

The copper strike coat will build about 3-5 thousandths per pass before it starts to get "funky". Clean, buff , clean again, decrease and make the next pass. Masking, sanding and/or buffing is used...

The prohibition is on "INTENT TO TRANSFER" NOT sale.

Truer words have never been spoken! I could have bought a COUPLE AR50 for what I spent on equipment to pull off this project alone.

Dan makes a damn fine barrel and the .50 barrels are about as good as it gets. Many of the "Navy" barrels are in combat as they are sold to both U.S. and Canadian military. At one point the Lilja...

I do understand your question and what you mean by it. However, it is rather like asking what needs to be changed to make a VW beetle into an F-150. Holmes took shortcuts so that more people could...

It's been a few years but I bought NEW Lilja Navy contour .50 barrels for a LOT less than $900!!!

As for the Holmes .50. I looked over his plans years ago and was VERY uncomfortable with...

Or he became embarrassed that he got called out on his lack of knowledge on couple topics. I’m sure you understand that very well Mram.... At any rate he is welcome back any time he chooses.

There are thousands of videos on YouTube by people who don't understand OR know what they are doing. One more is hardly worth comment.

Acid etching is a chemical process... No electricity is used.

What you are describing is electro-etching. However, there is no need to use an acid in the electrolyte solution. Simple table salt...

In a "sinker EDM" (like you are describing) the electrode does not touch the work piece AND is pulsed to create the discharge that does the work. DC or even low frequency AC would more than likely...

Where in this does article cite a 1,000psi pressure for ANYTHING??? Hint: It does NOT! ANYWHERE!!! I read it 3 times.



Clearly noted under the "Comments" for BOTH tensile strength and yield...

Although this is 100% correct TECHNICALLY. I doubt it would be a huge concern. I have used stainless steel fasteners with Al for years... Even where exposed to salt water (talk about a galvanic...

I use 1144 stressproof strikers. Is does machine very well. My OPINION on this is probably a throw back to days where bluing was THE option for finishing. It was MUCH easier (if not the only way)...

Mine is basically a scaled up 700 with a few tweaks. Fun project!

The numbers for 6061t6 Mram10 cited are crap to start with... Although it is TRUE that typical vales are close to what he cited, ONLY MINIMUM values are specified for 6061t6. ONLY these MINIMUM...

Travel is NOT what you really need... Striking force is. I don't recall where I got this info, but I found 100in/oz as a spec. for one of the .50BMG primers (may have been from one of the GD guys,...

Pressure at muzzle would have zero effect on whether or not a brake would perform well. It is ALL about the velocity and mass of the gasses and how well the brake is able to capture that energy. ...

LOL... Sorry but I'm NOT going to go down the rabbit hole AGAIN. I have a crap load of experience testing and inspecting Al pressure vessels. Mag flux, x-ray, ultrasonic and mechanical as well as...

Aluminum scuba cylinders have been used successfully for more than 50 years too... However, occasionally they fail with catastrophic results EVEN AFTER annual visual and 5 year interval hydostatic...

Galling is only one issue. IMHO the biggest reason not to use Al for a brake if explosive failure due to grain boundary failure. Practically any flavor of steel will work fine. Galling can be an...

Let me START by saying that I do NOT work on firearms belonging to ANYONE else. ANY conductive surface can be plated and plated well... IF one knows how it's done. I usually only do SMALL parts...

Ever stop to think that they are coming to you because no one else will put up with their crap?

In ANY business the line is clear... When they become unreasonable it's time for them to leave.
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It's done in race cars all the time as well... Normalizing is simple in non-heat treated steel... Normalizing HT steel can remove the temper.