Perfect Union banner
1 - 20 of 21 Posts

· Registered
Joined
·
39 Posts
Discussion Starter · #1 ·
I'm just sick. I was changing stocks on my 10-22 and the barrel got knocked off the bench.........and hit the concrete on the muzzle. After reinstalling the barrel/receiver assembly, my groups went from what had previously been 1/2" at 100' to 3" at the same distance. :( Have I totally ruined my barrel, or can a gunsmith re-crown or set the crown back to regain the accuracy? I sure don't expect I'll be putting many squirrels in the pot with a 3" group.
 

· Registered
Joined
·
8,460 Posts
I'm just sick. I was changing stocks on my 10-22 and the barrel got knocked off the bench.........and hit the concrete on the muzzle. After reinstalling the barrel/receiver assembly, my groups went from what had previously been 1/2" at 100' to 3" at the same distance. :( Have I totally ruined my barrel, or can a gunsmith re-crown or set the crown back to regain the accuracy? I sure don't expect I'll be putting many squirrels in the pot with a 3" group.
If I were you I would use this as an excuse to buy a new bbl (particularly if you need to justify the expense to the better half). "Gosh hon, I need to buy this new bbl". Then go out and get a nice new match grade tube and tighten those groups up some more. The old tube? Have it recrowned and keep it as a spare.

Just my two cents.
Grumpy
 

· Registered
Joined
·
592 Posts
If I were you I would use this as an excuse to buy a new bbl (particularly if you need to justify the expense to the better half). "Gosh hon, I need to buy this new bbl". Then go out and get a nice new match grade tube and tighten those groups up some more. The old tube? Have it recrowned and keep it as a spare.

Just my two cents.
Grumpy
You might get a brass round head screw and some valve grinding compound and your electric drill and repair the crown your self.
It is worth a try
 

· Registered
Joined
·
39 Posts
Discussion Starter · #6 ·
Thanks Guys, I feel better knowing I won't have to be out a couple hundred bucks for a new barrel. Always wanted a bull barrel, but my new stock won't accept one. I just purchased a new Strikeforce tactical stock from ATI. The wife needs a butt-stock of 10" and I need one of 13".............so the adjustable stock is great. I appreciate all the suggestions............and thank you Woodstock for letting me know Brownells offers a lapping tool for the .22.............I'll order one right now.
 

· Registered
Joined
·
39 Posts
Discussion Starter · #8 ·
Well, I've been all over Brownell's site after making my last post and I can't find a .22cal muzzle lapping tool. I find a lot of tapered lappers for .22, but not straight. I'm wanting something that re-establishes the "round" of the barrel at the muzzle, aren't I?
 

· Registered
Joined
·
39 Posts
Discussion Starter · #10 ·
There's no visible damage, Woodstock. The barrel hit the concrete at an angle. My thought (since the accuracy is so much worse now) is that the end of the barrel is microscopically out of round. My assumption is the lapping tool is inserted into the barrel at the muzzle to lap it round. Am I incorrect?

Oh and my apologies..........didn't realize that was a link.
 

· Registered
Joined
·
3,368 Posts
My assumption is the lapping tool is inserted into the barrel at the muzzle to lap it round. Am I incorrect?
Yes, but on the ones pictured only the round tip is placed against the muzzle with some lapping compound, the straight shank on the other end is to chuck in a drill to spin it. It doesn't actually go down inside the bore, just right at the outside edge of it.
 

· Registered
Joined
·
39 Posts
Discussion Starter · #12 ·
It's so nice to make contact with experienced individuals..........unlike myself! Thanks, Woodstock. I just ordered the lapping tool you suggested. I've got lapping compound from 120..........all the way up to 800. That ought to be fine enough, shouldn't it?
 

· Registered
Joined
·
444 Posts
All stocks has a set inch pound that they are turk at! If not done your gun will not shoot good. Did the stock that came on the gun have a free floating barrel? Does this stock let it free float? You can tighten a stock way to tight!
 

· Registered
Joined
·
39 Posts
Discussion Starter · #16 ·
I've got a list of things I'm doing to the 10-22. Each time I do a step that's supposed to increase accuracy, I shoot 5 shots from a rest and record data. Each thing I've done has made a 1/8" improvement in accuracy. The last thing I did was to purchase a torque screw-driver and torque the take-down bolt to 20 in/lbs.........and it also was an improvement. I have yet to bed the receiver and (against the recommendations of some) run some Final Finish ammo through it.

The old stock was the laminated Mauser style factory stock from Ruger. I don't honestly know if the barrel was floated. On this new stock it is.
 

· Registered
Joined
·
367 Posts
Chris C, You seem to be quite methodical in your pursuit of accuracy.
If you don't mind I'll make a few suggestions.

The stock screw tension can vary between stocks. 30lbs is Ruger's spec. On my target builds I've ranged from 22-28 and have even "tuned it" from day to day based on temperature. I have an extremely accurate WIHA TORQUE WRENCH
Before you "bed" try a simple shim made from plastic/vinyl of a plastic bleach bottle. 1-2 thicknesses produced 7-9 lbs of up pressure on mine and made a huge difference. Yeah, you'll have to re-sight your scope.
There are also aftermarket special V blocks to reduce or eliminate barrel drop on a heavy bull barrel.
The usual after market hammer and sometimes sear can help as well.
Lastly choice of ammo is critical! CCI, Mini Mags, Fed Auto Match or if you really feel extravagant Wolf Match and the like can make a night and day difference.
Good luck!
 

· Registered
Joined
·
39 Posts
Discussion Starter · #19 ·
Thanks, Yoteman. I was told the torque on the take-down screw was 20 pounds. I'll try torquing to 30 and see if that makes a difference. Don't have a bull barrel. Presently have the receiver and barrel in an ATI Strikeforce stock. I don't particularly like tactical stocks, but my wife's LOP is 10 inches and mine is 13 plus. The Strikeforce allows both of us to comfortably shoot the 10-22. I'm sure it's not the ideal "accuracy" stock....but will have to do. I'm just trying to set the rifle up to be as accurate as possible. Bedding material is already on order, so I'll wait and try it. I've already replaced the hammer and that was monumental as far as trigger pull goes.......but certainly made no difference in accuracy...........except maybe for my own finger movement with the older setup. For right now, I'm not using anything special in the way of ammo. I'm shooting Winchester 37 grain hollow-points. Thanks for your tips and suggestions.
 

· Registered
Joined
·
367 Posts
A huge key to accuracy on a 1022 as well as a Marlin 60 is that take down screw tension. With a stock barrel accuracy can be improved from a grapefruit size group to one of respectability ....in some cases inside an inch.
Suggestion:
Shoot a few rounds at 20lbs and incrementally up to 30lbs. You'll find the sweet spot for your gun without breaking the bank. Keep everything else constant especially ammo by lot#.
The torque wrench in "inch lbs" is an essential tool for attaining accuracy.
Let us know!
 
1 - 20 of 21 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top