Home Forums Hunting & Shooting Ask The Gunwriters Magnetospeed on Rock rest

For those who asked about mounting the Magnetospeed on a Caldwell Rock rest, here's the photo. The plate on top of the rest normally holds the sandbag. I drilled one hole in it to hold the MS bayonet.

I really like this setup.

I do too, but it took me a couple months after buying the Caldwell rest before I got off my butt and figured it out.

It works well, for a couple reasons. First, the Rock is heavy enough not to shift around due to muzzle blast. Second, it can be easily adjusted for height, if need be to get the muzzle of a particular rifle in the right place.All you have to do is make sure the muzzle sits just above the V-rest at the rear of the bayonet--which is where the barrel is normally strapped to the muzzle.

Coolio.

If I ever spring for the magneto speed I may have to look this one back up.

Fortunately, our range is never very busy, so the Pro-Chrono suffices for now.

Thanks for the pics John. Explains it well.

Thanks MD I like my Magneto Speed but kept thinking I needed the Lab Radar. With just the purchase of the Rock Junior and your input I no longer have a yearning for the Lab Radar.

Clean setup JB!

I also have been working on a rest for the magnetospeed.

This is the simpliest only required opening up two existing holes.One on the magnetospeed where the strap bolt goes through to 1/4" and the other one opening up one of the offset holes on the quick release plate to 1/4". This is on a manfrotto fluid head. Center bolt is removed.

If there is an issue it might be leaning over bench to get the height correct when range is hot not sure how easily that can be done.





Also working on a platform to sit on bench similar to yours JB. Issue there is that the rifle will have to be moved to rear of bench and not sure range rules will allow it.

One experiment has a few magnetic base dial indicator offsets with three rods so magneto speed can be attached to front rest and extended the correct amount forward of the bench. The last connector has a small bolt and nut for magnetospeed. The offsets allow for a wide range of adjustment.

Great idea thanks for sharing

You're welcome--but the original idea wasn't mine, though using the Caldwell rest was. Dirtfarmer rigged up his Magnetospeed with another rest that he had on hand, but after I looked at several brands the Rock looked like it would work easily--and it's also relatively inexpensive.

That looks really good, but I'd be lucky to make it through 10 shots before I destroyed the bayonet. LOL

Just completed the fourth variant. Will be going to test all four soon.

This one has a old tripod head installed on a 1/2-13 threaded rod. There is a snug hole in bar, the two knurled nuts will allow vertical adjustment. The bar will be clamped to front edge of bench. Should be close enough to the bench to allow adjustments during a hot range.

Proper alignment to prevent blowing up the bayonet is something that should be addressed in preparation for each shot, IME.

The Magnetospeed extension device seems a good idea when a longer bench is not practical. A free standing rest needs something to sit on.

In my case, I built a tailgate bench for my Z-71 which gives plenty of room for the rest mounted device. May not be for everyone in every situation. The typical shooting range benches I've seen may not be long enough.

DF

Thanks for showing your version Dirtfarmer.

I have my own bench for occasional shooting on BLM land but mostly go to the range where they have concrete benches as shown in picture. They have limited length:

Looks like a nice range.

Yeah, those benches are too short for free standing Magnetospeed, an extension set up would work better in that setting.

Or one could use a tripod set up beyond the bench to support a free standing device. Not sure if all ranges would allow that and from what I see, not sure that would work with the step down, concrete to dirt, right where the tripod should be sitting. Maybe using a rail on the tripod would allow Magnetospeed to be positioned rearward enough to function.

DF

Just a thought with limited fore-and-aft space: why not make a plywood "sled" that provides that extended length needed for the third rest? Looks like you only need another 12"-18"

I'm lusting for a Labradar, but I can't justify the price. I'll stick with my Chrony II.

JB,
Been there & done that in several prototypes. Still working on a couple of others. The problem for a lot of us as mentioned by AZshooter, the benches, public or private, are too short for both rests & rifle. Not criticizing your setup. Like DirtFarmer, it works well with your own manufactured shooting platform. Not all of us have that luxury.

Working specifically with Magneto Speed bayonets, all 3 generations, I have tried extra rifle rests, c clamp bases & T-Tracks for adjustability, fabricated attachments mounted to the rest feet & others. I want to provide something that will work well, be simple & cost effective. I am still theorizing. Recently stumbled upon the Masterpiece Arms Magneto Speed bayonet adapter & rod. I will be testing it out with my Masterpiece Arms stock soon. Then adapting it for my composite stock configurations. I’ve received some questionable stares at the range while testing some of my concoctions.

Eventually between all of us we will come up with a nearly fit all solution. I have yet been unable to interest the M-Speed folks in helping to champion the cause ultimately, although, they have helped me with a prototype. Maybe at some point they will see the need & provide some engineering.

Already got a Labradar. Are you guys telling me I need a MS too? Be Well, Rustyzipper.

I was waiting for the go ahead from my eye surgeon. Just had cataract surgery in my shooting eye. Once again have 20/20 in that eye!

I tried the long aluminum bar setup which extends off end of bench. Darn Bench made of concrete had a downhill slope! It wasn't too difficult to set it up to shoot. Had to be extra careful with the positioning of the rifle on the front rest. Had to move the rest and rifle around some after each shot. Was a bit of a pita. I am setting it aside to try the easily movable aluminum box support that sits on the bench as shown early in this thread. I figure I can move it around quickly to center on rifle instead of moving rifle and rest to align with magnetospeed.

More results to come.

Current prototype which is working quite well. But, like DirtFarmer said, it's a lot of fabricating for the average user. I am working on simplifying by integrating both of these examples & fine tuning it. I would prefer something that mounts to the forearm of the stock utilizing the sling stud the way a bipod would to eliminate the adjustment of two separate units.






Original idea, which also worked well but required too much fidgeting.

Wow, that is impressive work. It looks like it would cost more than the MS. Very nice metal wrk! Looks solid.

I may be in the minority but I don't mind the barrel attachment for my uses. When I work up a new load I find safe pressure/velocity. Find accuracy. Finish with another velocity check and dope my drop. Yeah, it does cost me some extra rounds that way.