And I think this AirMarksman Backbone will really help stiffen things up. Anyone currently using the backbone?
Pretty excited to turn my Impact into a Slugger!
- Thread starter Michael
- Start date
Not a must for some Impacts and it helps others. It’s not a game changer or cure and it won’t make a bad gun good, but if you’ve experienced the effects of flex with your current platform, it will help.
Upvote 0
I think you would be happier overall having a solid unchoked barrel machined for it. Rather than patching a problem it's better to fix the source.
Upvote 0
.22 caliber? I've shot Justin Welch's PRS gun shooting .22 NSA 31.2 at 1050 FPS and reg. at 180 bar with tungsten hammer and its an amazing shooter. I think he uses an older 700mm Slug A liner.
Upvote 0
Yes, .22 caliber, power plenum, and I've got a Tungsten hammer floating around here somewhere
Upvote 0
now this would be amazing for a day optic when using a clip on Night Vision and rail can hold anything as most airgun pic rails do not give much rail
Upvote 0
The backbone has helped with reducing hold sensitivity on my two slug shooters, both in 0.22. One shooting 25gr and the other 40gr, both around 970fps.
I’m quite happy with the results. It doesn’t necessarily make the gun more accurate, but it does make it easier to be accurate with.
I’m quite happy with the results. It doesn’t necessarily make the gun more accurate, but it does make it easier to be accurate with.
Upvote 0
??? "...if you’ve experienced the effects of flex with your current platform..."
Sorry for my ignorant question, but what is a benchmark for a flex? Can you remove the barrel without some aggressive effort? If you feel any misalignment sliding it in or out = there was some human error assembling the Lego.
I am really picky for precision thingies and I toke my Impact apart so many times that one of the M3's strip of the thread in the RearBlock, I re-thread it for SS helicoil inserts, and still after "tons of abuse" never noticed "flexing" in the Impact structure. Removing my liners for cleaning, when back to the game next day at the range maybe 2-3 clicks on the turrets (@100) that is all for more then a year.
Maybe I am just lucky, but I think the handling is playing as well.
Beside all of this I am also eyeing the Upper Plate, but maybe the next invention. I would prefer a combination of two recent designs, a full length bar with front upper + side/angled picatinies, so I can go "above the barrel bipods" with side rails.
Sorry for my ignorant question, but what is a benchmark for a flex? Can you remove the barrel without some aggressive effort? If you feel any misalignment sliding it in or out = there was some human error assembling the Lego.
I am really picky for precision thingies and I toke my Impact apart so many times that one of the M3's strip of the thread in the RearBlock, I re-thread it for SS helicoil inserts, and still after "tons of abuse" never noticed "flexing" in the Impact structure. Removing my liners for cleaning, when back to the game next day at the range maybe 2-3 clicks on the turrets (@100) that is all for more then a year.
Maybe I am just lucky, but I think the handling is playing as well.
Beside all of this I am also eyeing the Upper Plate, but maybe the next invention. I would prefer a combination of two recent designs, a full length bar with front upper + side/angled picatinies, so I can go "above the barrel bipods" with side rails.
Last edited:
Upvote 0
Looking forward to results! I have a .22 1-14 I haven't tried yet but will hopefully soon for the heavy stuff.
Upvote 0
I stand corrected. I thought I had a tungsten hammer, but it’s just a slug power kit. Should be all I need for the weights I plan on shooting.
Upvote 0
I think the AM BB rail is the best aftermarket piece ever made yet for the impact. It’s not about bling, and it’s not about power. It adds ridgidity(if that’s a word)to the impact platform.
Before, with my impact set up on a Caldwell turret rest and the M6 socket head bolt loose(that is at the trigger block and it’s duty is to clamp tight to the front of the PP), the barrel installed, and the top factory rail tightened down, I would still need to raise the rear block a smidge before tightening on that M6 socket if I wanted the gap between the bottom of the barrel and the top of the PP to be parallel, or equal between the two.
If I didn’t do that then that meant the front flat of the PP sat tilted ever so slightly against the rear of the trigger block. I’m sure the added weight of the saber tactical adjustable shoulder butt had to do with that
Before, with my impact set up on a Caldwell turret rest and the M6 socket head bolt loose(that is at the trigger block and it’s duty is to clamp tight to the front of the PP), the barrel installed, and the top factory rail tightened down, I would still need to raise the rear block a smidge before tightening on that M6 socket if I wanted the gap between the bottom of the barrel and the top of the PP to be parallel, or equal between the two.
If I didn’t do that then that meant the front flat of the PP sat tilted ever so slightly against the rear of the trigger block. I’m sure the added weight of the saber tactical adjustable shoulder butt had to do with that
Upvote 0
Flex has nothing to do with sliding your barrel in or out. Nothing to do with how things line up when you assembled the gun. Flex is noticed when you’re actually shooting the gun. Hint, if you never change anything about your bench setup and shooting technique, it will be much harder to detect flex.
Upvote 0
i believe Matt Duber is using those on his impacts, was watching youtube out of the cornner of my eye yesterday working on my own stuff, made me want a impact m3That's what I heard. It will also give me the real-estate to try a top mounted GRS bipod.
Upvote 0
I will say I give the AirMarksman Backbone a thumbs up on my M3
I have the "short" as I chanted about it as an option for months and then saw ER "chop" his off and "bingo" it was available. Love it.
Is a great addition to the FX platform.
Patrick
I have the "short" as I chanted about it as an option for months and then saw ER "chop" his off and "bingo" it was available. Love it.
Is a great addition to the FX platform.
Patrick
Upvote 0
Michael - any final thoughts on the Airmarksman backbone rail for the FX? I find that I buy these “must have” accessories then end up going back to a pretty basic stock setup. From a pure design standpoint I’m not sure I can see how it adds any stiffening or rigidity to the M3. How’d it work out for you?
Upvote 0
Mike, I now have 2 of them on my M3's. And if nothing else they helped to re-center my windage. The single piece is as centered as it will be with no need to play with the picatinny screws to "center" the standard mount. No big deal, just one less thing for me to adjust.
Patrick
Patrick
Upvote 0