I built up a little 10/22 takedown with the Magpul stock and a Tactical solutions barrel. Firing from a bench with the forend resting I was getting 1/2 go 3/4" groups with hunting HP's - just fine for what I'm wanting this rifle for. Problem was that when I moved the rest back off the forend groups moved completely off target! This was a regular 100yd site in sized target.

I expect some impact shift but not more than a foot in some direction. Has anyone had luck tightening up the collar or other techniques to reduce Point of Impact shift on the 10/22 takedown? I'll be looking it over and seeing if I can figure anything out. I'll post here if I find a good solution..........dj

Any pressure exerted on the forend is going to cause a shift in your poi. I can picture how leaning a little on the rifle while on the bench would cause the barrel to flex at the takedown joint, resulting in a poi shift when the stress is removed.

Question - when you installed the barrel, have you tightened down the barrel adjusting collar? If it's very easy to install the barrel on your rifle, it's likely loose and needs to be tightened down a good bit.

I have mine very tight so it takes some effort twisting the barrel on and off, but the barrel is rock solid with the receiver.

something is seriously amiss in your barrel connection. I have no such issues. with pretty much the same setup. Now normally I wouldn't shoot this gun of a rest, but I did initially and then shot it freehand and yes there is a difference in group size but not group centering, but that's just because I suck.

 
I had this issue until I adjusted the collar for tightening the takedown. A bit too loose or too tight, and it varies the POI. Play with it until you get it right. There is a sweet spot.
 

This is exactly the type of issue I asked about when the rifle was first announced, and am still curious about, especially in light of the similar 9mm takedown. When anyone bothers to even acknowledge the question about POI/zero shift, the most we usually get is, “I’ve never had any problems,” “Mine shoots fine,” or something equally vague and lacking in details.

It’s good to know that the problem can be mitigated by setting the rifle up just right, or avoiding certain shooting methods, or holding one’s mouth a certain way, but again, has anyone done any rigorous comparison testing to see what causes problems and what doesn’t? As for adjusting the collar, is that an experiment, set, and forget process, or does it require fiddling with every time the barrel is attached?

quote:

Originally posted by sigfreund:
This is exactly the type of issue I asked about when the rifle was first announced, and am still curious about, especially in light of the similar 9mm takedown.

As for adjusting the collar, is that an experiment, set, and forget process, or does it require fiddling with every time the barrel is attached?

I'm considering the PC 9mm Carbine, and this concerns me as well.

If you don't ever plan on using the takedown feature, can you just tighten the collar down gorilla-tight and leave it?

quote:

Originally posted by RHINOWSO:
Question - when you installed the barrel, have you tightened down the barrel adjusting collar? If it's very easy to install the barrel on your rifle, it's likely loose and needs to be tightened down a good bit.

I have mine very tight so it takes some effort twisting the barrel on and off, but the barrel is rock solid with the receiver.

I'm going to try this......

quote:

Originally posted by djpaintles:

quote:

Originally posted by RHINOWSO:
Question - when you installed the barrel, have you tightened down the barrel adjusting collar? If it's very easy to install the barrel on your rifle, it's likely loose and needs to be tightened down a good bit.

I have mine very tight so it takes some effort twisting the barrel on and off, but the barrel is rock solid with the receiver.

I'm going to try this......

This all day long. Ensure the barrel collar is snug, working it a click or two at a time otherwise too much and you can’t assemble it. One click can make all the difference in Barrel to receiver fit. Accuracy with my LITE was all over until I learned this and it’s improved substantially. I haven’t messed with different torque settings on the receiver stock pin yet, which I’ve read can also gain additional accuracy.

I simply followed rugers setup directions (roughly speaking tighten and add two clicks)and have had no issues on the two examples I own of strange POI shifts on re-assembly. I know that's not exactly the original question as I use these for pest control and so don't switch between a rest and unrested. Its been minute of rodent just fine for awhile now.

quote:

As for adjusting the collar, is that an experiment, set, and forget process, or does it require fiddling with every time the barrel is attached?

Mine has been set and forget. It 'clicks' each position as you tighten it down.

I have mine set that it take a bit of effort to disengage the barrel lock to put the barrel on / off, and accurate has been good and repeatable (no shifts).