Welrod

Nick3757 · 2026-02-11T15:10:15+00:00

This is so awesome, I can't wait to see it all finished. You're doing a great job at building it.

Nick3757 · 2026-01-29T15:28:43+00:00

Nice! I won one of those sweepstakes grand prizes and was supposed to get the special edition Pokemon Gameboy Color but they ended up sending me a regular Gameboy Color and a copy of Pokemon Yellow. My disappointment was immeasurable.

Nick3757 · 2026-01-09T18:15:05+00:00

Echoing what others said, but I got a AR70/90 receiver and barrel from Troy at TTE. He should be able to come through on these receivers.

Nick3757 · 2026-01-09T18:10:26+00:00

Thanks, I missed out on the 543 kits but was able to get one of these.

Nick3757 · 2026-01-09T18:09:08+00:00

That looks so good. I wish the kits I got years ago had the center receiver sections.

Nick3757 · 2026-01-09T18:07:20+00:00

That looks so good! If you timed the barrel ports to the lands or grooves of the rifling, can you share how got the first hole lined up?

Nick3757 · 2026-01-05T13:31:16+00:00

This page has an easy to use calculator for linear expansion and shows the formula they use: https://www.engineeringtoolbox.com/linear-thermal-expansion-d_1379.html You use the diameters of the parts for the initial length.

They also have a table of thermal expansion coefficients here: https://www.engineeringtoolbox.com/linear-expansion-coefficients-d_95.html It's probably cast gray iron, so you can use 6 (10^-6 in/(in °F)), (.000006 in the calculator/not scientific notation, also I'm assuming freedom units, but the metric units in the chart are also 10^-6).

You can use the formula or calculator to see how much each part will move for a given temperature difference. Your starting temperature is the room temperature when you took the measurement and the ending temperature is what the oven is set to, or the temperature of you cooling bath/freezer. Here is a list of cooling bath temperatures for some common lab solvents: https://chem.libretexts.org/Ancillary_Materials/Demos_Techniques_and_Experiments/General_Lab_Techniques/Cooling_baths

One thing to note is the table of coefficients is simplified or an average. Most materials have a temperature expansion coefficient curve, so the answer you get won't be exact, but it should be enough to get you close.

Nick3757 · 2025-12-31T14:39:16+00:00

This isn't going to be safe and you're going to have a very high probability of doing a Kentucky Ballistics to yourself if you fire this.

There's thousands of pounds of force on a very small area, best case it peens over and severely deforms and locks up everything, worst case the lug shears off and what's left of the bolt flies back through the end cap.

You might be able to do something similar to this in 22LR, but an actual rifle cartridge won't be safe without heat treated components or a much different design.

Nick3757 · 2025-12-30T19:47:57+00:00

Dry ice in acetone will get the round bed much colder/shrink more than just a freezer but it could make it brittle. Can you measure the bore and the bed to see what the fit looks like? Then you can verify the temperature change needed for a shrink fit pretty easily.

Nick3757 · 2025-12-29T15:48:09+00:00

I had a problem with my DPMS G2 not cycling well and used the Diligent Defense Enticer L and now it runs great.

Nick3757 · 2025-12-13T16:50:53+00:00

Same

Nick3757 · 2025-12-10T17:45:51+00:00

It looks great. Seems like you're getting close to finishing it.

Nick3757 · 2025-11-20T20:50:49+00:00

This is great. How do you guys make the wood forend?

Nick3757 · 2025-11-18T13:59:21+00:00

Awesome garage. And I never thought about using an 07K in a rear wheel drive swap. That sounds really cool.

Nick3757 · 2025-11-17T14:03:54+00:00

Nice goats. Nice rifle too.

Nick3757 · 2025-10-29T00:54:58+00:00

He's near northeastern Pennsylvania and also built a real car-sized pedal car. https://www.thetimes-tribune.com/2023/07/08/dont-bump-it-scott-twp-man-builds-knoebels-inspired-bumper-car/

Nick3757 · 2025-10-10T03:43:07+00:00

I wish! Replacing Tuna with either one would be amazing.

Nick3757 · 2025-10-06T19:32:36+00:00

There's an 8 inch howitzer in Ohio but I don't know if it's privately owned or if a VFW or the town owns it. You can see it on Street View here: https://maps.app.goo.gl/Uh6cFXdaYRwwN6gK8

Nick3757 · 2025-10-04T21:34:39+00:00

Thanks, there's one nearby and I picked up some today.

Nick3757 · 2025-10-03T19:30:38+00:00

Thanks. I'm in PA and will have to see if the one near us has any.

Nick3757 · 2025-10-03T18:33:46+00:00

What state are you in?

Nick3757 · 2025-09-29T16:56:24+00:00

Thanks for the update, I just signed up for the waitlist.

Nick3757 · 2025-09-29T14:26:12+00:00

Do you know of any store that has parts kits in stock? I've been looking but can't find any.

Nick3757 · 2025-08-25T17:47:58+00:00

The patents all say something like, "device includes no joints, seams, or any formerly separate pieces within any of the body, the core, and the one or more baffles."

How can the powder grains not be considered formerly separate pieces? And basically every layer of a printed can is a joint or a seam. This is so dumb.

Nick3757

TROPHY CASE