Author Topic: My Field Target Project (Read 65417 times))

michaelthomas · « **Reply #200 on:** December 22, 2013, 02:01:39 AM »

Thanks, Don.

I still haven't fooled with the barrel tuner......but maybe by next weekend. I need to make a good adjustable front rest, too. It's getting old shooting off two bags on the bench.

Mike

michaelthomas · « **Reply #201 on:** December 23, 2013, 02:59:00 PM »

A while back I said that I would post some drawings of the rifle.

I am currently making 8 more of these, so I will post the drawings of the pieces as I go. If you have a lathe, and a mill......you should be able to make these parts without too much trouble.

I milled the first Maple stock on my CNC mill.......but had a friend mill the last few Walnut ones on his CNC Router. He said he would mill them for anyone for $150.00 plus the wood cost. That's not too bad, really.

All in all, a person should be able to duplicate this rifle for around $500.00 or so in material.

If you can follow along piece by piece.....it shouldn't take too long, either.

The first two parts are the reservoir end cap and the tube coupler. The regulator will slide inside the coupler. I have built my own (reg), and have used a Huub. If you wish to use the Huub......he can turn the body of his reg to fit .800" ID and supply the proper Orings. Material is 6061 aluminum. 1.5" 6061 bar should cost about $6.00 per foot.

I order the foster fittings from Mac1.

I will probably be selling a few of these to help pay for my FT donor rifles and the other stuff I need to get FT matches going here in Montrose next summer. If you may be interested in a rifle.....please PM me.

Mike

michaelthomas · « **Reply #202 on:** December 29, 2013, 10:00:34 PM »

Didn't get any further on the gun parts, but I got some more time to shoot 25m benchrest practice after Christmas. Gun is tuned for the LV class (12 FPE).

Shot 4 targets with JSB 8.44's......sorted for a roll arc 2.9-3.1 on my glass plate. These are the favorites of the gun, for sure.

This thing is consistently shooting 249 and up with an average of 12-13 X.

The 10 ring on these practice targets is .080"......which is the international 25m target size, but the 8 and 9 rings are actually smaller than the international by a fair amount to be able to fit 25 scored shots and 5 sighters on a 8 1/2 x 11 paper. Doesn't seem to matter, though.

All targets are scored with a .224 plug.

I still have not had time to make an adjustable front rest.......so everything is still off a cheapo front and rear bag. I can't wait to see how it will do off a proper rest.

Mike

Sfttailrdr46 · « **Reply #203 on:** December 29, 2013, 10:09:14 PM »

If you show up at any match that I was thinking of shooting in I hope they have an old fart division. otherwise I'll just give you my money and place friendly wagers on the outcome probably win a bigger purse that way

michaelthomas · « **Reply #204 on:** December 29, 2013, 10:16:58 PM »

Not to worry Don......I'll just loan you a rifle.

Mike

PetefromTn · « **Reply #205 on:** January 02, 2014, 03:24:49 PM »

Michaelthomas,
Just found this thread. Very nice work man. Looks like it has the accuracy as well. Well done. Peace

Pete

michaelthomas · « **Reply #206 on:** January 02, 2014, 08:34:52 PM »

Thanks, Pete.

sgeorge · « **Reply #207 on:** January 19, 2014, 09:33:16 AM »

Well, I have read this thread 3 times and like some Disney rides, I pick up something new each time. The down side is now I have even more questions.

michaelthomas · « **Reply #208 on:** January 19, 2014, 11:18:55 AM »

Quote from: sgeorge on January 19, 2014, 09:33:16 AM

Well, I have read this thread 3 times and like some Disney rides, I pick up something new each time. The down side is now I have even more questions.

Well.......you have my number.

Anytime.

Mike

Spike589715 · « **Reply #209 on:** January 20, 2014, 06:12:13 PM »

Hi
Fantastic thread !
Thank you for sharing
I am currently reading on a pad and trying to see if there is a circuit diagram for the project
I have been looking at a similar project but looking at controlling with a microprocessor
Possibly even blue tooth and controlling from a phone - my brother is a developer for android so maybe we will end up this route
In the meantime just looking to get something going

Thanks again
Simon

sgeorge · « **Reply #210 on:** January 27, 2014, 10:02:49 AM »

Mike,

You really should start another thread, "My Benchrest Project" and outline how your rifle has evolved since this thread ended.

csdilligaf · « **Reply #211 on:** January 27, 2014, 10:34:10 AM »

And maybe we can see it and get in a shot or two at the USARB National Championships coming up in Pheonix? Will you be going? I've never shot in a sanctioned event before and there should be quite a few custom airgun there, yours sure would fit in.

michaelthomas · « **Reply #212 on:** January 27, 2014, 06:12:45 PM »

I haven't given much thought to attending......I'm sure it would be fun. I'll have to research it a bit. It would be nice to take some other rifles for a test ride, too.

I have never shot outdoors with flags, yet. Would probably be an eye opener.

Mike

csdilligaf · « **Reply #213 on:** January 27, 2014, 07:33:09 PM »

Both you and I first timers show up at a national championship with home built airguns. That is a big leap but I'm going to give it a try. Hope you do also, I dont want to be the only newbie in town.

michaelthomas · « **Reply #214 on:** January 27, 2014, 09:41:52 PM »

Ha Ha......I know. I've never even seen or touched another PCP in person before.....seriously. Seen lots of pictures, though.

Like I've been living under a rock.....with internet access.

I wasn't educated enough about airguns to know that my design wouldn't work. lol

Mike

Sfttailrdr46 · « **Reply #215 on:** January 27, 2014, 10:06:23 PM »

Quote from: michaelthomas on January 27, 2014, 09:41:52 PM

Ha Ha......I know. I've never even seen or touched another PCP in person before.....seriously. Seen lots of pictures, though. Like I've been living under a rock.....with internet access.

I wasn't educated enough about airguns to know that my design wouldn't work. lol

Mike

Very impressed I didn't know this was your first AG build and PCP to boot

boomer_mikey · « **Reply #216 on:** January 31, 2014, 05:19:56 AM »

Michael, a fabulous project with fantastic results.
As a hobby machinist I appreciate how much work it takes to make all the parts for a single gun. What's amazing to me is how you find the time to accomplish so much. The electronic trigger is amazingly simple and efficient... well done!
The quality of your work shines in your benchrest scores.

Very inspirational...

Fantastic post,

Boomer

PatrickB · « **Reply #217 on:** June 03, 2014, 02:47:19 PM »

QVTom · « **Reply #218 on:** June 03, 2014, 03:25:27 PM »

With knowing the thickness of your air tube I'd think that a 12tpi thread will cut way too deep and not leave enough wall thickness for safety.

Some finer pitch standard 1-3/8 threads are the 20UN, 24UNS, 28UN, The 20, 24 or 28tpi may be more appropriate.

I've got a nice spread sheet with all the thread info of most standards, It makes a good reference. PM me with you email if you are interested. Too big to post.

Tom

michaelthomas · « **Reply #219 on:** June 03, 2014, 04:23:19 PM »

No.....they are not standard threads. You'll have to single point.

If you are going to deviate from what I have shown......I would have the tube hydrotested prior to use......for the reasons that Tom mentioned. I would have it hydrotested, either way......it's cheap insurance.

The tube I tested from my last batch did not yet reach yield at 10,000 psi. I didn't bother to have it tested beyond that. The company that tested it used a 10,000psi max test cell, because they didn't think they would make it to 5000 on an aluminum tube.

Anyway......get it tested before you pressurize it. Costs 50.00$

Mike

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My Field Target Project

Author Topic: My Field Target Project (Read 65417 times))

sgeorge

Spike589715

sgeorge