so this post will be a bit long and a copy/paste from an e-mail exchange between me "Bill" & a friend "Drew" (Trained Gunsmith & competitive shooter, later moved on to be a machinist). Good bad or otherwise my background is engineering ...
thought it may be appropriate for the continued investigation/learning into the X22. If the T-storms hold off i hope to execute a "test plan" (hogue vs X22) this evening since i have otherwise been unable to find any 'good' data..
you're the closest thing we got so you're the expert ...
I (like everyone) have a Ruger 10/22 with a 0.920" bull bbl. presently it's in a Hogue overmolded stock and that stock 'free floats' the barrel. it works great...
Magpul just released their "Hunter X22" stock for the 10/22 and i decided to grab one of the first ones since i am generally a Magpul fan boy, and more importantly because it offers a near "A2" grip angle i have come to like.
here's the catch & the question .... i was surprised to see the Magpul stock is not a fully floated barrel channel. Essentially the receiver is supported, then its free floated until the very distal/muzzle end of the forend where there's a rib that purposely supports the bbl...it wasn't designed to free float...i called magpul and they confirmed.
so free float a 10/22 bull barrel or not??? what kind of thoughts and/or experiences can you share??
I CCed Miles and Phil thinking they may be interested in your thoughts too
Hey Bill et all,
Thanks for the helmet polishing....
My experience with the free floaters is with Winchester 52 bull barrel tgt pieces and a couple of hunting Win 70 bolt hunters. What I was taught was the full action and 2.5" of barrel fully captured in the stock and the forward section full float. Now with that in mind, the earlier 52's had two adjustable screws that actually were designed to contact the barrel about 2" from the end and you made tension against the barrel, adjustment was based upon accuracy, some of the earlier 52B's actually had a band that went over the top. We never did anything other than have those make contact after cleaning or shooting in the rain because the old wooden stocks would swell and shrink with moisture. Other than moving toward the trend of free floating we never really saw much of a difference in accuracy, ammo was our greatest bang for the effort. Between pieces like ammo will sometimes group differently and it used to drive us nuts with 3 of us all with 52's. My Dad didn't like grey areas, it was either hot / cold, black / white etc. to have like barrels same stock setup close in serial ##'s etc. and one would group less than 1" at 100yds and the sister barrel would shoot 3" would send him right to the home brew.... When shooting competitively we bought 10k rds at a time so you can see where the jam would be.
I have no idea why they would have the forward end sitting on a rib unless they thought the action attach and bedding of it wasn't supporting the barrel properly. What is holding the barrel to the stock at the end or is it just sitting on it? If there is tension against the barrel as the stock is tightened they must have it figured pretty good because I would imagine that force could change accuracy just on how tight the action was screwed in. It's been a long time since I've seen a 10/22 out of a stock where you can see what's actually touching to hold it all tight. After testing the new stock against old using same ammo, same rest setup, same day etc. you may find why they did it.