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  #1  
Old 02-28-2011, 04:27 PM
birdhunter birdhunter is offline
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Cooper .17HMR




I just picked up my first rifle I've owned since I was a teen shooting target competitions with a .22. That was 50 years ago.

It's a Cooper Custom Classic in .17HMR. My gun shop put a Leopold VX-II 4-12x40mm scope on it and "honed in" the rings (no idea what this means).

What is the recommended sighting in process?

Is there a recommended breaking in process?

I have access to an indoor range with 25 yard lanes and an outdoor range with "action pits" and a rifle range with 100, 200, and 300 yard ranges. The action pits are mostly for pistol, but small caliber rifles are OK. They are about 35 yards.
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  #2  
Old 02-28-2011, 04:56 PM
goetztrp goetztrp is online now
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If your gun store honed in the rings you have a good store. They polish the inside of the rings with a tool and lapping compond so there is complete contact with the rings and the scope. There are a lot of differant methods for breaking in barrels for center fire rifles but dont know if the same is used for rimfire. I would call cooper and find out what they say. For your rifle i would site it dead on at 100 yards and shoot it at 125 then 150 just to see were it is hitting. If you have a duplex retical the thickness of the lines will start to cover up small bullseyes at long distance. For a gun like that it would be best to have a fine line retical or a fine line with a 1/8'' minute dot like on target and varmint scopes.
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  #3  
Old 02-28-2011, 05:28 PM
birdhunter birdhunter is offline
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Gun Store

I am a VERY good customer of this store.

The owner said he didn't do this very often.

I will call Cooper in the morning.

Thanks for the info.
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  #4  
Old 02-28-2011, 06:19 PM
USMM guy USMM guy is offline
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I am curious?

Is there any particular reason why you decided to go with this caliber?
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  #5  
Old 02-28-2011, 06:40 PM
birdhunter birdhunter is offline
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Reason

Nope, no reason. Just thought it was a neat caliber. Total whim.

Didn't want to spend that kind of money on a .22 and had a .223 Wilson Combat UT15 on order.

I don't hunt big game so didn't want a big rifle. Also don't like recoil so a small caliber was attractive.


Impulse buying led me to 1911 pistols and I now have 4 and really enjoy shooting them.

Perhaps, I'll enjoy rifle shooting. If not, I'll sell the Cooper.
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  #6  
Old 02-28-2011, 07:12 PM
speedjunkie69 speedjunkie69 is offline
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I have a Savage in 17hmr and I'll tell you right now, for me, it's a real hoot! Much better performance than a 22 in the same size rifle. Ammo is more expensive, but I don't care. It's just too darn fun to shoot! Have fun with it!




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  #7  
Old 02-28-2011, 07:33 PM
Bike Effects Bike Effects is offline
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Good luck with the new Cooper birdhunter. All Cooper barrels are hand lapped so break in would minimal. On my centerfire Cooper, I cleaned after each 5 shot group for just a few groups. No real break in on my .22.
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  #8  
Old 03-01-2011, 05:09 PM
birdhunter birdhunter is offline
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First Shots

I shot the Cooper .17HMR today for the first time. Indoor range with a maximum of 30 yards.

Shot the first groups at 15 yards to be sure I was on the paper. Group was about 3 inches right. Took a couple of tries with the gross windage adjustment on the mount to get the direction right. Was able to center the groups with just the gross adjustment. The elevation is about 1" high at 30 yards.

I'll take the rifle to the outdoor range Thursday and shoot at 100 yards to do the final adjustment on the scope.

The rifle is a joy to shoot. The trigger breaks at what I'd guess is between 3 and 4 pounds and is very crisp.

I think I'm hooked!
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  #9  
Old 03-01-2011, 06:01 PM
goetztrp goetztrp is online now
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Dont know if you hunt varmints or not but that gun will ruin a crows day real fast.
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  #10  
Old 03-01-2011, 06:45 PM
birdhunter birdhunter is offline
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Crows

I live in Atlanta. How do I get into crow shooting?
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  #11  
Old 03-01-2011, 07:43 PM
goetztrp goetztrp is online now
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I could help you out if you lived up here but i dont know about atlanta. There is a varmint hunting forum that you could join I dont know the name but if you google varmint hunting you can find it. I am sure there will be people in your area that can point you in the right direction. Varmint hunting is a lot like 1911's once you get started you are hooked for life. Georgia pecan plantations would hold some crows i would bet.
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  #12  
Old 03-02-2011, 02:42 PM
birdhunter birdhunter is offline
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Newbie Range Question

I went to my outdoor range today to fine tune the scope settings.

Shot first at the 50 yard range. Got zero'd in pretty good. I'm amazed how accurate this little cartridge is.

I then put up the target at the 100 yard range. I expected to see the group lower as I had the cross hairs centered as I had on the 50 yard target.

The group was centered!

My scope does have a distance setting on the front. I did change the scope setting from 50 yards to 100 yards.

Is the lack of bullet drop from the bullet trajectory or from the distance setting on the scope?
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  #13  
Old 03-02-2011, 03:18 PM
goetztrp goetztrp is online now
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It is a flat shooting cartrige. I think the adjustment you made on the front of the scope is for focas and not for drop. Paralex (dont think i spelled it right). Is it a ring you turn around the objective lens.
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  #14  
Old 03-02-2011, 03:30 PM
deldago deldago is offline
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If you are on target at 50yds,you will be right on at 100yds.The only time I have to compensate at all is short range under 20yds it shoots about one inch low.From 25 yds to 125 yds hold it right on and you are good to go.And yes,it is devastating on crows.I shot one last week about 30yds away and he was dead before he hit the ground.It is really cool to watch the impact in the scope as the gun doesn't even move because of the lack of recoil.
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  #15  
Old 03-02-2011, 03:42 PM
goetztrp goetztrp is online now
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My buddy has the .17 mach-2 and i shot a starling with it. WOW it exploded and thats a lot smaller than the HMR. I would get one but i have ruger stainless 77/22mag that gets a lot of use for rimfire and a reminton 700 in .17rem for center fire. Ground hog season is right around the corner and i cant wait.
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  #16  
Old 03-02-2011, 03:55 PM
herd48 herd48 is offline
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Gravity starts working on a bullet as soon as it leaves the barrel. Dead on at 50, cannot be dead on at 100. The drop may not be much. But the only time POI will be the same is going up and coming down. My AR's are dead on at 50. 2 inches high at 100. And dead on a 200. Your gun can be close at both ranges. But not the same. Unless at 100 it is already on it's way back down. That may be the case.
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Last edited by herd48; 03-02-2011 at 03:57 PM.
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  #17  
Old 03-02-2011, 04:35 PM
deldago deldago is offline
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Looking at the ballistics chart it seems the bullet doesn't start dropping till about 125 yds.The difference at 50 yds versus 100 yds is 15/100ths of an inch.I wish I could shoot good enough to notice that.
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  #18  
Old 03-03-2011, 12:31 PM
jwc41 jwc41 is offline
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Quote:
Originally Posted by birdhunter View Post
Shot first at the 50 yard range. Got zero'd in pretty good. I'm amazed how accurate this little cartridge is.

I then put up the target at the 100 yard range. I expected to see the group lower as I had the cross hairs centered as I had on the 50 yard target.

The group was centered!

My scope does have a distance setting on the front. I did change the scope setting from 50 yards to 100 yards.

Is the lack of bullet drop from the bullet trajectory or from the distance setting on the scope?
According to Hornady's online Ballistics Calculator, that's as it should be with a 1.5" scope height. When zeroed, the bore and the scope's sight line are on slightly different vertical planes. So, in relation to the scope's sight line, the bullet is traveling up for a distance before it starts falling back to earth. Thus, your 17 HMR's bullet apogee is somewhere between 50 and 100 yards and the bullet's path intersects the scope's sight line at exactly those distances.

IMHO, the 17 HMR is the go-to gun for small varmints out to 250 yards.
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