Author Topic: XS60C PCP Repeater project (Read 455676 times))

stalwart · « **Reply #1561 on:** May 29, 2016, 04:26:13 PM »

You'd have to lead these by quite a bit. How fast do they go?

Looks like fun hunting, though.

StevenG · « **Reply #1562 on:** May 29, 2016, 07:53:37 PM »

Now for those I would invest in a wingshot.

RMM · « **Reply #1563 on:** May 30, 2016, 07:07:17 PM »

Well as you all know I'll be getting a Stalwart Arms 3K Double with a regulator so I thought I'd get busy fabbing a stock and the 60 was a good one to work with.

Well here goes.

I figured all I needed to do is add 7/8" filler + the with of the saw cut, thus the layout and cut pics. The cut was determined by half the diameter of the 7/8" CroMoly tube (7/16" radius) which is obvious in the reservoir inlet. Remember this is a prototype subject to bedliner covering. Wood on hand was mahogany (I think oak would have looked nice).

I used my portaband with a bed and fence to cut off the lower part of forend and cut the mahogany fillers on a table saw. I flushed the fillers with the inside of the stock and left plenty material to all pieces to sand off on the outside. I have just enough meat in the forend lower reservoir channel to remove material for a finish fit.

This pic show I chiseled out approximately 1/2" behind the front of the receiver for any discrepancy in length of the lower reservoir.

Stalwart and I talked about routing out the forearm reservoir channel but with this method, careful measuring and fitting a router will no be needed. I'm going to take a 7/8" wooden dowel rod and glue loose sanding grit (it's sold in various grit sizes) then a steel rod glued into 3/8" hole el centro of the wooden dowel then use my cordless drill to deepen the forearm lower reservoir channel if need be. I think I'm with in 1/16" of being deep enough.

Here are some pics showing preliminary sanding and what's left is some dabs of stock filler then finish detailing for the application of bedliner. (Sanding was done with a hand held belt sander, table belt sander and DA sander for rough in. Finish sanding will be done by hand block sanding.

Things I learned.

My mahogany filler assembly could have been prefabbed with radiused corners and installed as a unit. (I pieced all together in place one piece at a time on the stock and forearm.)

As an afterthought I could have radiused and not had square corners, a much better flow and aesthetics. With radiused corners and the use of oak I believe I could have sanded, stained and cleared the entire stock and I think it would look real good.

Buldawg76 · « **Reply #1564 on:** May 30, 2016, 08:44:09 PM »

Quote from: StevenG on May 29, 2016, 04:00:33 PM

This would be feral hog in Texas. We hunt from steel raised blinds, so unless they have power tools or learn to climb ladders we are pretty safe.

Yea I realize the hogs that were being referred to were just feral pigs but just want to let people know that there are pigs/Boar that it would not be wise to attempt to hunt with an air gun much less some firearms as well.

As far as the steel blinds are concerned unless they are cemented into a large flat slab the boar we hunted would have you on the ground in short order since they could uproot the steel legs and topple the whole blind on its side. I would have never believed what they are capable of if I had not experienced it myself. I am talking about Boar that are the size of a medium bull with tusk about as long as a bulls horns.

Believe me or not but they do exist.

Mike

stalwart · « **Reply #1565 on:** May 30, 2016, 10:15:03 PM »

Nice stock work, Mike!

The only other option would be to cut the forearm bulge flat, add the extra wood, route out the channel, and shape. Your idea looks easier, and needs fewer tool$ to accomplish. It could easily be done with hand tools. Good thinking!

Now, if LW would just hurry up!

RMM · « **Reply #1566 on:** May 31, 2016, 11:06:18 AM »

Quote from: stalwart on May 30, 2016, 10:15:03 PM

Nice stock work, Mike!

The only other option would be to cut the forearm bulge flat, add the extra wood, route out the channel, and shape. Your idea looks easier, and needs fewer tool$ to accomplish. It could easily be done with hand tools. Good thinking!

Now, if LW would just hurry up!

Less tools and more user friendly was my goal.

But you came up with another stroke of genius with the above and it would entail removing throwing away the old forearm and routing a one piece new forearm. The 7/8" router bit I have is short shanked, like me

, and it would be best if the routing be done before fit, glue and shaping. I don't believe I have enough bit depth to rout when installed on the stock. The stock in my post is for the .22 and my other stock is for the .25. I got a feelin. Today is gonna be a good time.

Even though the LW transaction was made in the U.S.A it might take a few weeks for me to receive the barrel. I guess that's LW's custom.
If that FD match .25 barrel doesn't work out I see a .25 LW barrel in the future.

Kailua · « **Reply #1567 on:** May 31, 2016, 01:52:46 PM »

RMM if routing at a deeper depth is a problem. Do you think a router extension would solve the problem?

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjdvbWa4YTNAhUG6WMKHXxxDg4QFghAMAA&url=http%3A%2F%2Fwww.rockler.com%2Frockler-router-collet-extension-for-1-4-in-shank-bits&usg=AFQjCNHerLzOHAbcRyKyw6WD70xoJjZydg&sig2=KEQ0ITZyk3mqCTDambmwWA

stalwart · « **Reply #1568 on:** May 31, 2016, 01:59:54 PM »

Excellent idea! Thanks for the link, that's a very reasonable price.

RMM · « **Reply #1569 on:** May 31, 2016, 02:35:27 PM »

Yes it would Kailua ! Thanks!! I can center a 7/8"guide to the center of the router table collet and rout to my hearts content.

stalwart · « **Reply #1570 on:** June 14, 2016, 06:34:55 AM »

For those guys who have been asking about putting 1/2" OD liners or Marauder barrels in their 60s... here's how you make up the slight difference in the sizes:

I ream the receiver to .5635", (perfect for those bigger liners), turn and bore a sleeve (keeping it a bit smaller ID), bond it in, and turn that section of the barrel down to match (forming a stop shoulder).

It takes time... but, it works great.

rsterne · « **Reply #1571 on:** June 14, 2016, 12:34:34 PM »

If you are going to sleeve the 1/2" OD barrel with Carbon Fibre, you may also be able to find a CF tube that is the correct diameter to fit inside the XSS-60c receiver.... For sure you can get one that is 9/16" OD, which would fit inside Eric's bored receiver.... That is how I did my Grizzly....

Bob

stalwart · « **Reply #1572 on:** June 17, 2016, 08:55:38 AM »

The smallest patterned stuff at McMC is the perfect size.

http://www.mcmaster.com/#carbon-fiber-tubing/=12vu1to

Much cheaper: http://www.carbonfibertubeshop.com/small%20tubing.html

Interesting development here: Across the street, in an under-utilized industrial area, the property values instantly quadrupled... and it all sold out... when it was recently zoned for marijuana farming.

One interesting part of all this is that firearms cannot be kept on those properties. And, I am getting inquiries about self defense air guns. More than a few...

StevenG · « **Reply #1573 on:** June 17, 2016, 09:27:20 AM »

I think I would be more interested in the other part

The carbon fiber tubes I mean, of course. Looks like that second link only has .50ID .575OD in 60 inch lengths. That is a heck of a long barrel.

Buldawg76 · « **Reply #1574 on:** June 17, 2016, 11:36:54 AM »

It may be all we have left for self defense is our air guns in light of the recent tragedies.

Need a 45 cal Thompson air gun.

Mike

rsterne · « **Reply #1575 on:** June 22, 2016, 12:28:42 AM »

I got my tins of 34 gr. JSB Beast .22 cal pellets today, and the first thing I did was try them in a PRod 8-shot magazine.... They are sooooooooooo close to working it's hard to believe.... In fact, some clear and some don't, just the tolerance in the pellets, and wobbling slightly in the wheel in the magazine is enough to make them hang up sometimes.... Often when the magazine is full, it will feed fine, but when the spring tension is at a minimum with only 1 or 2 pellets remaining, if those happen to be on the long side, it sticks.... Of course some mags may have a whisker more clearance and work perfectly, they are that close....

I pulled a magazine apart, and used a 1/4" spherical burr in a Dremel and just relieved the recess in the bottom front of the magazine case.... All you have to do is work it over with the burr until it is uniformly dull from contact with the burr.... Reassemble the mag. and it will work flawlessly.... I realize this is likely not of any interest to guys shooting a PRod, not many of them are going to shoot 60-70 FPE to make use of such a heavy pellet.... However, for anyone who uses that mag. in a custom build, this is great news....

I know my next project, my Disco Double which will be built around shooting these pellets, will be taking full advantage of the fact they can work in a touched up PRod mag....

Bob

stalwart · « **Reply #1576 on:** June 23, 2016, 09:44:01 AM »

That will be so BA.

FWIW, I tried 1 mag, to see if it would fit in a 3 jaw chuck fairly centered... and it did, just well enough to shave some more depth into that spot.

stalwart · « **Reply #1577 on:** June 23, 2016, 07:54:14 PM »

Guys, you might want to keep an eye on the Raffle thread, for a couple days...

stalwart · « **Reply #1578 on:** July 02, 2016, 11:38:42 PM »

Well guys... looks like the saga of the exploding FDPCP is over. http://www.gatewaytoairguns.org/GTA/index.php?topic=96148.new;topicseen#new

The tube was found, measured, and found to be way below min allowable OD. Not surprising, given the results of my tests... and (like my tests) a vindication of the design.

rsterne · « **Reply #1579 on:** July 03, 2016, 12:33:40 AM »

Yep, as you proved with your tests, no reason to fear if the threads in the receiver and on the tube are within tolerance.... The weak point is the valve screws in that case.... and even the stock screws are good to about 1700 psi with a 3.5:1 safety margin (6000 / 3.5) .... On a regulated gun, with a 1.8K burst disc, that should be OK as well.... So the gun really was designed to withstand CO2, even on a hot day....

Of course your through tube setup allows for much higher MWSP, which is always a bonus....

Bob

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XS60C PCP Repeater project

Author Topic: XS60C PCP Repeater project (Read 455676 times))