I made a barrel block

B

Bnhpr

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Now what to heck do I do with it?

It's 2.5"x3.5"x6"x1.220"

Just mill into a hugh benchrest stock and bolt in down?

Any ideas, are appreciated.
 

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Ben, now you build a rail gun to go with the barrel block. Most of the barrel blocks to go in stocks like McMillan MBR's or Shehane Trackers are not much wider than a Panda action to allow them to fit in the stock. That makes it a little harder to figure out where to put the bolts to pull the block together and you have to use smaller bolts.
 
Bnhpr said:
Now what to heck do I do with it?

It's 2.5"x3.5"x6"x1.220"

Just mill into a hugh benchrest stock and bolt in down?

Any ideas, are appreciated.
Click to expand...
Is that single side split going to work guys? Looks to me like it would be hard to get a good even torque on the barrel.
 
Jerry

I went to a round ID split this year, in conjunction with a 3/16 inch thick Nylon insert beteen the barrel and the block. It is two piece. The insert is one piece. Works great!!
I agree with you. I think you can controle the tighteness as far as an even torque all the way around with a split block.
But hey, that looks real nice. I agree with Mike Bryant. Bolt that puppy on top of a Rail Gun.........jackie
 
Why Nylon?????????

jackie schmidt said:
I went to a round ID split this year, in conjunction with a 3/16 inch thick Nylon insert beteen the barrel and the block. It is two piece. The insert is one piece. Works great!!
I agree with you. I think you can controle the tighteness as far as an even torque all the way around with a split block.
But hey, that looks real nice. I agree with Mike Bryant. Bolt that puppy on top of a Rail Gun.........jackie
Click to expand...
,,,,,,,,,,,,,

Why not the material of the barrel, or the material of the block???? Less variables.

Shoot well
Peter
 
JerrySharrett said:
Is that single side split going to work guys? Looks to me like it would be hard to get a good even torque on the barrel.
Click to expand...

If I have trouble with it, I can slit the other side, since it is symetric. My plan was to make the barrel +.001-.000 to keep it from rolling, we'll see.

Just a science project.

The Bolts are M8x1.5 I'll just bump them up to 50 Nm (37 ft-lb) and see if it moves.

I need some ideas for a rail, I guess. Lots of pics online.

Any suggestions Jackie?
 
I have to ask... if this isn't a big recoil rifle...

Why wouldn't epoxying it in work? Make the barrel close, lay it in with epoxy, lightly tighten the screws. ???
 
Peter,

I have been working with Rail Guns for years. I have tried several different configurations in order to make the barrel as "dead' as possible. Up untill this year, I have been using a 2 1/8 OD x 1 3/4 ID steel tube with a 1.450 Unlimited barrel epoxied in to it. The space was taken up by 100 percent epoxy.
I have been quite successful with this set-up.
The past couple of years, I hace seen very successful shooters isolating the barrel from the rest of the Gun with some sort of non-metalic sleeve between the barrel and the block. This acts quite well as a deading agent. I tried it, and believe it accomplishes the same thing as my barrel-in-the tube, with a lot less work. Since I have built this set-up, the agging capability seems to be on par with what I was using before.
Many shooters ask why I do not use a tuner on my Rail Gun. I tried one, and found that when shooting slow, the accuracy was top notch. But, since you can shoot a Rail VERY fast, the tuner throws some sort of weird vibration in the barrel that does not settle between shots. The results are disastrous.
With a bag gun, there is no way that you can shoot it fast enough, so all residule vibrations from the previous shots are gone. It always has time to settle into it's static state. With a Rail, it does not. So, what we do is put a dampennig agent between the barrel and the rest of the Gun without any other attachments.
Some of the things we do, in fact, most, are nothing more than the results of trial and error. Since shooters like myself have the skill, and the facility, to build just about anything, it gives us the freedom to try ideas in a timely manner,.........jackie
 
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jackie schmidt said:
I have been working with Rail Guns for years. I have tried several different configurations in order to make the barrel as "dead' as possible. Up untill this year, I have been using a 2 1/8 OD x 1 3/4 ID steel tube with a 1.450 Unlimited barrel epoxied in to it. The space was taken up by 100 percent epoxy.
I have been quite successful with this set-up.
The past couple of years, I hace seen very successful shooters isolating the barrel from the rest of the Gun with some sort of non-metalic sleeve between the barrel and the block. This acts quite well as a deading agent. I tried it, and believe it accomplishes the same thing as my barrel-in-the tube, with a lot less work. Since I have built this set-up, the agging capability seems to be on par with what I was using before.
Many shooters ask why I do not use a tuner on my Rail Gun. I tried one, and found that when shooting slow, the accuracy was top notch. But, since you can shoot a Rail VERY fast, the tuner throws some sort of weird vibration in the barrel that does not settle between shots. The results are disastrous.
With a bag gun, there is no way that you can shoot it fast enough, so all residule vibrations from the previous shots are gone. It always has time to settle into it's static state. With a Rail, it does not. So, what we do is put a dampennig agent between the barrel and the rest of the Gun without any other attachments.
Some of the things we do, in fact, most, are nothing more than the results of trial and error. Since shooters like myself have the skill, and the facility, to build just about anything, it gives us the freedom to try ideas in a timely manner,.........jackie
Click to expand...

Should I put this thing back in the 4 jaw, open it up and make a plastic sleeve?
 
Sleeve

All I can say is that if you look at most of the Rail Guns that are winning, they have some sort of isolator between the barrel and the block.
I used a high impact nylon that we use to make bushings. Some use Delrin, others Micarta, (or some other phenolic).
I think Gene Bukys uses Oak.........jackie
 
More railgun photos

Here's a link to some railgun photos that I have on my web site including Jackie's rail gun. Some of the railguns that were used at the matches at Seymour, TX go beyond function and turn into works of art.
 
Man, its been years since I made this one , circa 1982.
1000%20yard%20gun.jpg


This was my first attempt at a 1K gun. I forget the exact dimensions, but the block was split to clamp on the receiver ring and barrel using five 5/16-24 Allen head cap screws per side. I used Devcon "F" instead of some sort to bushing...seemed like a good idea at the time! It worked, the gun shot very well as long as I wasn't behind the trigger!:D

Bill
 
Jackie/Butch

Thanks Jackie for taking your time and explaining your reasons. I have no reasons nor I ever had the intention to dispute your findings.

Butch, I was after the reason what is behind to use the Nylon instead of the materials of the block or the barrel and Jackie took his time and explained what the reasons are. If you are here looking for a free kick, you'r a dumb imbecile.

Shoot well
Peter
 
Thanks PePe,
I enjoy your posts. Some are from an imbecile and some are good. I will continue to keep you on your toes. Looking forward to seeing your receiver. Post photos as you go and that will hold our interest.
Butch
 
Butch

Butch Lambert said:
Thanks PePe,
I enjoy your posts. Some are from an imbecile and some are good. I will continue to keep you on your toes. Looking forward to seeing your receiver. Post photos as you go and that will hold our interest.
Butch
Click to expand...
,,,,,,,,,,,,,,,,,,,

That's how the World goes, however it's good to see that you'r in good spirit. Lets see how we go. I'm not as enthusiastic as I've once used to be, so it may take some time. But nothing stops you to use the info and make one for yourself. Make two of them and I'll buy the better of the two. It will cut the Red tape here.

Shoot well
Peter
 
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Rail Gun

Jackie I am new to the rail gun. I bought a used one and just got my barrel so where can i find the nylon you are talking about? Thank you Bill T
 
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