Bench-rest... Well, look what I found....

M

Meroh

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Hi guys,

A couple months ago I picked up a MDT Oryx chassis for my 455 super match. While I am very happy with the set up, I have been trying different set-up for bench rest from a caldwell lead-sled to various bags and a Bipod.

For the front rest, I have pretty much settled on a very cost effective but solid traditional carbon fiber bipod from Amazon, but the Oryx is not all that well suited to using a small rear bag, so I have been head scratching trying to decide if I should get a simple bag rider or a monopod. I found both in one unit, a guy on gun-post builds them with a 3D printer from carbon reinforced resin, with real, recirculating ball linear bearings for the guide rods. I have yet to shoot with it, but am very impressed with it. He builds them with both M-Lock and PIC rail attachment options.

I played with it a bit on the dining room table and think I am going to be very happy with it. $70.00 shipped.

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Cool! How much vertical adjustment does it give you?

I've designed and 3d printed (Carbon fiber reinforced nylon) something similar for all my bench rifles. Instead of a linear bearing, I'm using a bronze sleeve bearing. Originally developed mine for my CZ457 MDT LSS chassis hence the angled attachment point. For the MDT XRS I had to build an adapter due to the different stock angle and mounting requirement. I also have a standard picatinny rail adapter so it can fit pretty much any chassis with a rail or m-lok slot on the stock.

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The adjustment knob on mine is sandwiched between (2) teflon washers. Smooth to turn, but enough resistance to keep the elevation fixed and not move around. I get about 1" of vertical adjustment on mine.

I love them and they seem to be rock solid with both 22lr and centerfire.

I've also done cheek risers, adjustment knobs, flared magwells, m-lok rails... skys the limit.
 
Interesting, I have a 452 in a boyds varmint stock. I use a rock rest for the forend and am struggling trying to find a stable support for the rear. I think something rigid like this would do the job looking forward to your report.
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boxhitch said:
Nice, looks ideal if that thumb wheel has some friction resistance from rotating and doesn't rattle around?
Click to expand...
The thumb-wheel is printed with a threaded insert. There is resistance there, however I don't know if it will loosen up a bit in a year or two. What I do know is that there is zero play in the recirculating ball linear bearings so movement is uniform and jam free.
 
barthammer said:
Cool! How much vertical adjustment does it give you?

I've designed and 3d printed (Carbon fiber reinforced nylon) something similar for all my bench rifles. Instead of a linear bearing, I'm using a bronze sleeve bearing. Originally developed mine for my CZ457 MDT LSS chassis hence the angled attachment point. For the MDT XRS I had to build an adapter due to the different stock angle and mounting requirement. I also have a standard picatinny rail adapter so it can fit pretty much any chassis with a rail or m-lok slot on the stock.

View attachment 798076
View attachment 798078
View attachment 798079
View attachment 798080

The adjustment knob on mine is sandwiched between (2) teflon washers. Smooth to turn, but enough resistance to keep the elevation fixed and not move around. I get about 1" of vertical adjustment on mine.

I love them and they seem to be rock solid with both 22lr and centerfire.

I've also done cheek risers, adjustment knobs, flared magwells, m-lok rails... skys the limit.
Click to expand...
Very nice!
 
barthammer said:
Cool! How much vertical adjustment does it give you?

I've designed and 3d printed (Carbon fiber reinforced nylon) something similar for all my bench rifles. Instead of a linear bearing, I'm using a bronze sleeve bearing. Originally developed mine for my CZ457 MDT LSS chassis hence the angled attachment point. For the MDT XRS I had to build an adapter due to the different stock angle and mounting requirement. I also have a standard picatinny rail adapter so it can fit pretty much any chassis with a rail or m-lok slot on the stock.

View attachment 798076
View attachment 798078
View attachment 798079
View attachment 798080

The adjustment knob on mine is sandwiched between (2) teflon washers. Smooth to turn, but enough resistance to keep the elevation fixed and not move around. I get about 1" of vertical adjustment on mine.

I love them and they seem to be rock solid with both 22lr and centerfire.

I've also done cheek risers, adjustment knobs, flared magwells, m-lok rails... skys the limit.
Click to expand...
About the same travel on mine. I still plan on using a small rear squeeze bag.
 
boxhitch said:
That would look good without the adapter piece and have the studs run into holes in the bottom of the xrs

very nice work though.
Did you try the offset butt pad adapter yourself?
Click to expand...

Thank you!

Yeah, adapting it to the XRS was an afterthought so I didn't have to change the design of the riser just for that rifle. Works well for now, but I'll likely make a dedicated piece for it at some point that doesn't require an adapter. It would make it much easier to install too.

The adjustable butt-pad's are all MDT upgrades. Only the TIMBR stock came with it stock. It's very nice to have full adjustability for various shooting positions
 
Meroh said:
Very nice stuff, but at 5 X the price... I'm not sure I see the value when I compare both.
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It's exactly why I decided to design something myself. I looked at these and by the time you import one to Canada it's over $500 for just one.

I can't say it performs 100% the same given I don't have one to compare... but I've used mine on my 22lr for a few thousand rounds and I have no complaints. That $500 is better spent on good ammo!
 
IanC said:
Interesting, I have a 452 in a boyds varmint stock. I use a rock rest for the forend and am struggling trying to find a stable support for the rear. I think something rigid like this would do the job looking forward to your report.
3xSHVo3.jpeg
Click to expand...
First trip to the range. Lots going on for me out there today.

First off, I went out to again shoot the 100 yard CGN .22 Challenge. Nothing new with that activity; however my cataract has really advanced over the past month and I am now legally blind in my dominant eye. Today was my first attempt at precision style shooting with a patch on my right eye, sighting with my left, and shooting left handed. (boy do I need to work on my trigger use)

Shot two targets with Norma Jaktmatch and one with Norma Tac .22. (the much cheaper Tac.22 shot the best today) all three targets met the criterion.

The performance of the bag rider exceeded that of my own. It is indeed a keeper.


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