Kimber 82g accuracy

[superlight93]

J&P is now selling replacement springs

 

[smokin54]

I have a kimber 82g that i have been shooting for some time . Over on rimfire central there is a set of instructions to drop the trigger pull to under 4 oz and still safe with no creep, I have done one for my rifle and one for a freind . I have found the amount of torque used on the action screws makes all the difference in world on group size and shape , I have tried it on several rifles and found 12 inch pounds works well but each rifle is different . I usually start at 2 and work up to about 20 . My rifle with just wolf match target has shot groups in the .180s for 5 shots at 50 meters .

 

[solyanik]

What is J&P? Google only knows about motorcycle-related J&P :-(...

 

[gotflow?]

www.jnpgunsprings.com/

 

[bheadboy]

at the Cherokee Gun Club, Gainesville, Ga, a monthly 22lr Extreme match is held,out to 190yds

a number of the 82's are used, 541t, 52's, anschutz, etc, they seem to hold their own at these ranges with carefully chosen match ammo.

you might log on to their web page, and contack some of those shooting these matches for more info.

Bob

 

[V509]

Benzy2, I don't know how many times I've picked up a rifle, shotgun or pistol that had been stored cocked. It irritates me for several reasons. Mainly carelessness, safety, and fatigue of the firing pin spring.

Cycles kill springs not tension
Leaving a rifle or handgun cocked does no harm

 

[TRECustom]

V509, how did you arrive at this conclusion? If intermittent compression of a spring causes it to weaken, it seems logical that holding it fully compressed for long periods would weaken it also. I do believe that extensive cycling is more likely to break a spring than steady state compression, but not more likely to weaken it. I have no proof, but it would be ironic if the way to preserve a spring would be not only to never use it, but just leave it in heavy compression. I have read owners manuals that said not to leave firing pin, hammer, recoil, or even magazine springs compressed between uses. I never read one that said it was O.K. to store them cocked, locked back, or a magazine spring compressed. Even my RWS pellet rifle cautions not only against dry-firing, but also against leaving it cocked. They say it weakens the spring.

Aside from the metallurgical question, leaving a firearm cocked or locked back and stored that way is careless or uninformed, and is potentially dangerous. Obviously a duty or defensive weapon needs to be loaded and possibly cocked and locked, but by definition that makes it dangerous, and also by definition it isn't a stored weapon.

Sorry about getting somewhat off topic.

I will store mine clean, hammer down, firing pin released, magazines empty, and in battery in the expectation that it is safe, and that it will extend spring life. How anyone else stores theirs is up to them.

Good shooting, Tom

 

[astro]

Here's a target I shot with my little boys 82g. 10 shot 100 yrds the x ring is 1/2 moa 10 ring is 1 moa. wind was calm.

 

[TRECustom]

I got to the range Wednesday and shot the 82G and 2 other .22 l/r's. The temperature was 90 deg under the shed, and I wasn't at my best, but the rifle with the issue iron sights (except with a .062" rear aperture and the largest front aperture in the kit), is still better than I am with SK Match, Federal Premium GM Ultra Match, and with RWS R-50. The R-50 is the best, with 3/4 moa groups and one 1/2 moa group. Groups were 5 shots at 50 yds. The SK and Federal shot 1 moa. In the hands of a shooter like Astro, all 3 would probably be 1/2 moa and under. As I have stated before, I'll never know how good it is unless I put a good scope on it.

Now, I need to try some cheap ammo in it. I'm betting it will do well with something, maybe the CCI Minimag.

Tom

Tom

 

[Minesweeper3433]

try the reminton target from wally world. They sell it for 6 dollars a 100 and it comes in the rack hanger cases. It shoots just slightly larger than the wolf match in mine. Just much much cheaper. I always check sporting goods for that ammo every time I go to wally world.

 

[TRECustom]

Thanks Minesweeper, I'll check the local store.

Tom

 

[solyanik]

So I bought a bunch of rimfire ammo and tested it with my 82G.

Here are the results, at 100 meters:

Lapua Midas +
.80
.78
1.08
1.12
.73
.83
.94
.66
.92
.72

Wolf MT
.94
.60
.84
1.22
2.27 (one flier)
.71
.62
.60
.67
.99

Federal Target
1.13
1.09
1.21
.59
.86
.80
1.12
1.17
1.04
.91

Federal Ultra Match
.83
.50
.71
.90
.78
.83
.98
.40
.46
.53

Tenex
.64
.62
.65
1.45
.99
1.00
1.42
.80
1.81 (1 flier)
1.24

CCI Standard Target
1.79
.65
1.18
.25 (amazing what the probabilities do sometimes!)
.50

CCI Blazer
.91
1.26
1.16
3.02 (1 flier)

 

[TRECustom]

Solyanik, great data. You burned some ammo! Is your rifle scoped, and how many rounds in a group?

Looks like the Midas easily had the smallest group, but the Federal GM Ultra Match was the most consistent.

I tried RWS R-50, SK Rifle Match, Fed GM Ultra Match, and CCI Green Tag in mine at 50 yds with the iron sights that came on it, except I changed the rear aperture to a .062" that I had, and put in the largest front aperture in the set. Good for poor conditions, but not for precision shooting (my alibi).

The R-50 was the most consistent, and tightest. Avg of 20 rds (4 groups of 5 shots each) was .680", and tightest was .350" The SK wasn't too far behind, the Fed averaged 1", the Green Tag just over 1". No flyers with any of them, but I wasn't shooting tight enough to spot flyers, unless they went off the backstop!
I stopped and cleaned after each set of 20, and the groups included the fouling shots.

I need to get serious. Most of your 100 meter groups are better than my 50 yard groups! I've never shot .22 l/r at 100 meters (or yds). To me, that's some fine shootin'.

Having shot these different brands of ammo, which one is your choice now?

Thanks for an excellent post.

An afterthought. I also shot 2 good scoped .22's that day. The Kimber with irons hung in there with them. This is a solid rifle.

Tom

 

[Minesweeper3433]

What I cant figure out is why does some rimfire ammo that groups great at 50 or 100 not group at 200 but stuff that groups soso at 50 and 100 groups amazing at 200. I am shooting my kimber 82G with sightron target dot. I will get 1 inch groups at 200 on a really good day with ammo that shoots 3/4 inch groups at 50 yards?

 

[TRECustom]

Minesweeper, it's a little off-topic, but back in the late '30's and early 40's, I understand that the Brits had a similar puzzle. The Enfield .303 rifle was only so-so at 100-200 meters, but got better at long ranges. It was surprisingly accurate at 500 meters on out to the cartridge limits. I don't remember if they figured it out, but it sounds like it might be related to the phenomenon you describe, except with them, it was the rifle, and in your question, it's the ammo. Just something else I know nothing about!

Man, 200 yds is a long way for a.22 l/r. Good shooting!

Tom

 

[solyanik]

Hi, Tom, I was using the scope (Sightron 36x with Ron Hoehn modification) - I am nowhere near as good with the iron sights. The goal was to test the capabilities of the rifle, not me . Actually, the first # in Lapua Midas + was a typo - it was supposed to be .80. Sorry! I have fixed that now.

I did not swipe the barrel between the manufacturers, will do in the future, thank you for the advice.

It looks like price/performance wise, Wolf, at 1/3rd of the cost of Federal UM would be the round I will use the most.

 

[TRECustom]

Solyanik, I'm in the same boat, but the solution is clear. No better than I am with the irons, I surely don't need $18 a box ammo. I will try some cheaper stuff as I can get to the range. I already know the rifle is better than I am, so I can move on now.

Thanks, Tom