Renegade Prints (build Has Begun)

[Deleted member 17524]

OK folks, after a few inquisitive PM's, this is a Rail Gun. Thank you Andre for the link.

"Billy G"

 

[wrmiller]

I was a Scout in the Corps and later did pretty well at the thousand yard line at 29 Stumps, but something about all this mechanical stuff just doesn't seem right. Doesn't mean I wouldn't try it, but I thought I was cheating when I had a sling wrapped around my left arm to steady the rifle.

 

[clevinski]

Thanks for sharing the video, Bill... now I understand why they're called "rail guns"!

 

[Deleted member 17524]

The only thing that only thing holds the Barrel, Action and Top Slide on the rails is gravity. You can lift the upper half off the rails at any time you wish.

"Billy G"

 

[wrmiller]

So the rearward movement of the action is just reaction vs. mass? What returns the top slide to battery, gravity? or is there a mechanical construct that controls or limits movement of the top slide?

 

[Deleted member 17524]

Both good questions and they raise a third question. What stops the slide from going too far forward after the shot? The first question you answered yourself although some use rubber bands, surgical tubing, etc. chord to control the rearward recoil and forward motion. The next question, most just push he thing back. I am incorporating Springs for recoil and forward gain and a stop to bring it back to zero.
"Billy G"

 

[wrmiller]

I think I like your idea better than the rubber bands.

Repeatability of "bring it back to zero" or back into forward battery will be critical for accuracy of follow up shots. I of course assume you know this and already have a plan.

 

[dlhoulton]

I think I seen on some of the pictures and videos what looked like limit travel stops both front and rear. On the pictures I sent to you it looks like they used a metal stop up front and non metal in rear. Also the rubber band and spring return were used on a few. Some it just looked like they used there thump on there trigger hand to gently push it back to forward position.

 

[Deleted member 17524]

Yup, we has a plan. Zero will be Zero after every shot. Five more corrected prints to go and viola, poof, done. 81 hours of drafting and correcting so far.

"Billy G"

 

[Deleted member 17524]

That's all folks -- Done deal -- Fini, take your pick. It's been a total of 85 hours and the final prints (31 pages and 1 full sized assembly drawing) are done. I wasn't going to finish the last one till tomorrow and I never push the envelope. To close to stop. Now I have tomorrow free. Made one print with a couple of crooked lines. I was doing them again when the wife says what's crooked, it's an election year. I nearly peed myself. Gotta luv em.

"Billy G"

 

[Deleted member 17524]

Just for laughs I did the math. At $35.00/Hr. I think I'm over budget.

"Billy G"

 

[Billh50]

Isn't it amazing how quick it all adds up ? You start a drawing and figure it should only take so long. Then you look it over and find you need to change something. Then when you figure how much time you really have into something and you realize how much it would have cost to have it done. And then you realize you haven't even bought material yet.

 

[wrmiller]

This is interesting. Not to get too off topic Bill, but just last week one of my engineers was tasked with estimating how long to make a slight change to some of our test code files. His estimate was based on just typing the code. When I then pointed out the retrieval, load, locate where, write the code, etc., etc., his eyes widened and he then quadrupled his time estimate. He is now very glad I didn't just take his initial estimate at face value as we were talking hundreds of files...

 

[wrmiller]

OK, Bill G., it's all your fault for getting me thinking about competition shooting again. So I just had to order a STI 2011 frame and slide kit. I figure I have till spring to get it built.

 

[Deleted member 17524]

That's cool, and pricey. .38 Super, .40 S&W or .45 ACP, which one????

"Billy G"

 

[Deleted member 17524]

My wife has deemed it necessary to change the name. I am going with her suggested name, "Renegade".

"Billy G"

 

[wrmiller]

That's cool, and pricey. .38 Super, .40 S&W or .45 ACP, which one????

"Billy G"

I am planning to build two top ends. The first will be a .40 S&W for the Stock Class, either 5 or 6" in length. The second will be either 9x23 or .38 Super for Open Class. I need to do a bit more research on the 9x23, as that wasn't in play when I was competing, but I do like the idea of getting rid of that semi-rimmed .38 super. Very fussy cartridge to tune magazines for.

If I get real ambitious, I may add a third top end which would be a compensated 10mm magnum setup designed for maximum power reloads yet still function correctly with factory ammo.

All top ends will use wilson-style ramped barrels to eliminate possible feeding issues with these different calibers.

A friend who works with wood has already agreed to make a nice felt-lined hardwood case for this rig.

 

[wrmiller]

I honestly don't know. It's been about 10 years since playing with/shooting one of these, and I'd like to think the magazines have gotten better. I would suspect that I would be better to use the .40 and 10mm in the same mags. One of the things I am unsure of right now is if the .40 magazines will handle the OAL of the 10mm. If not, that would kill the 10mm top end.

 

[Deleted member 17524]

I believe the 10mm is shorter. If so it will not work. Like in Nam. they could use our 7.62 ammo but we could not use theirs.

"Billy G"

 

[Dracen knights]

Actually 10mm is longer than 40 by about an 1/8". 10mm will not work in 40 mags...at least nine I have seen as all the 40 mags have a built in spacer in the rear of the mag. But a 40 Will for in a 10mm mag.

I'm a very big 10mm fan.

 

[Deleted member 17524]

I stand corrected, Thank you for the info.

"Billy G"

 

[Dracen knights]

No problem I just wanted to make sure the info was correct as soon as I saw it. Plus as I mentioned 10mm is my favorite round... Would love to see this done in 10mm

 

[wrmiller]

Are you talking about STI magazines in particular, or magazines in general. Not sure I ever saw a spacer in the back of a STI magazine, but like I said previously, it's been a decade so my data is definitely not current.

EDIT: To continue this, we should start another thread so we quit stepping on Bill's.

 

[Deleted member 17524]

I think you could do a rail in 10mm. Let me get this one done and see then.

"Billy G"

 

[Dracen knights]

Well I don't have any Sti mags I currently have a cz75 in 10mm and a 1911 single stack in 10mm and I have seen both in 40 and both have a ridge or spacer in the back of the mag to move the round a little forward if it's a 40 where the 10mm does not have the it.

 

[wrmiller]

Delta Elite?

 

[Dracen knights]

Nope mine 100% custom built. Its currently out getting satin Nickel plated... A friend ( lisc. FFL is doing it for me for nothing) let's just say this is no where near your common 1911... Not in looks anyway... And pretty much every part is one off... Other than the FCG

 

[wrmiller]

I think you could do a rail in 10mm. Let me get this one done and see then.

"Billy G"

10mm works in a single stack 1911, but is near the limits of the pistol's ability to extract/eject/strip/feed. I'm not sure the STI mags are deep enough front to back. Many years ago I was the first person to show up at a USPSA sectional with a high-capacity, unlimited pistol (Rob Leatham was still blowing up 9mms trying to make major...) based on the early aluminum para-ordnance frame. Only available in .45 at the time, (.40 S&W didn't exist yet) I couldn't get 10mm to fit in the mags, so I trimmed all of my 10mm brass to centimeter and shot the match with a wildcat. Managed to beat Rob, a paid professional at that time, on two stages. The word got out fast. Once the steel para frames became available, they started popping up at matches all over the place. Then Rob discovered .38 Super and the Open Class started getting real expensive after that.

 

[Deleted member 17524]

We are now at some sort of standardization on the prints. The are done in ink now and ready for Billh50 to put them in CAD format.

"Billy G"

 

[Billh50]

Billy G,
Anytime after this weekend will be fine to get together. Will only be busy on Tuesday (testing done then ). Also if you can scan the 81/2 x 11's and send them I can start on those right away first.