Rail gun for AR uppers?

[dbooksta]

It uses Thompson bearings on ground shafting. There is enough mass that it needs no dampener,even with .50cal. The ammo companies have gone to something similar for testing toreplace the Mann V block and slide.

Interesting. What does the sliding upper weigh?

 

[MilGunsmith]

Don't know, we never weighed it. We do use a forklift or crane to move it. An M16 will only move the slide about an 1.5". We push the slide back to the stop after each shot.

 

[alinwa]

How's the hand doing Bud? I guess your catfish noodling days are over ....for a while.

Doing good, spent a couple hrs on the lathe today, stitches come out next Wed.

I can again drink coffee while driving,

thankful every day,

moreso,

al

 

[Mike A]

dbooksta..... And THIS is why THIS pertickler website is Da'Bomb'


Thank You Wilbur



al

Yep, this is a gem of a thread, it took a turn that I would never expected, there is a great knowledge base here.

Makes up for reading all the old grumblebum replies of "we don't talk about that stuff here, best you go somewhere else"

 

[Don]

Jay, obviously you're an authority on these. Other than the beautiful finish of your rails could you offer a sort of "sales pitch" for outsiders like me? I.e., do your builds incorporate features that improve performance or precision over what the uninitiated might cobble together using stock materials and a mill?

For example, I can see that all adjustments can be done with more ease and precision on your bases. Although never having had the chance to operate a rail gun I don't know if that's a luxury or necessity.

The adjustment mechanisms that you see in the Young rail are primarily for competition use to traverse between sighter and record targets in a very precise and repeatable manner, these mechanism would not be necessary for your AR testing but would not inhibit it.

 

[308sako]

AR test fixtures, M16/AR15 or AR10

http://www.wisemanballistics.com/

 

[dbooksta]

That Wiseman fixture is beautiful. That's what I originally had in mind, although it's not as versatile as the upper-rail-mount fixture they built at AMU. (It's also out of the price range of a hobbyist since it starts at over $20k!)