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Max Online: 16728 @ 03/25/12 08:51 AM
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#6119186 - 01/05/16 12:38 AM Bending a bolt
booradley Online   content
Pro Tracker

Registered: 01/20/11
Posts: 1691
Loc: Justin, TX
I have a CZ 550 American 6.5x55 and it is my favorite rifle. The issue with scopes like Zeiss and Meopta the eyepiece is so big that the bolt hits it, this isn't an issue with Leupolds. But I bought a Meopta specifically for the CZ and the only way I can mount now is by going to high rings. Bought high rings in August but can't bring myself to use them, I don't like the cheek weld and don't want to add material to the comb.

How feasible is bending the bolt and what does it cost?
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#6119272 - 01/05/16 07:01 AM Re: Bending a bolt [Re: booradley]
Tff caribou Online   content
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Registered: 08/27/12
Posts: 2996
Loc: Watauga, TX
Now I've never done it, or looked into it, but wouldn't you then have to modify the stock to accommodate the different shape of the bolt handle?

My vote, which is worth what you paid for it is, use high rings, and buy a stock pack that you can add comb height without modifying anything.
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#6119293 - 01/05/16 07:19 AM Re: Bending a bolt [Re: booradley]
booradley Online   content
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Registered: 01/20/11
Posts: 1691
Loc: Justin, TX
My understanding is you don't have to modify the stock. I could be wrong.
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#6119298 - 01/05/16 07:23 AM Re: Bending a bolt [Re: booradley]
Tff caribou Online   content
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Registered: 08/27/12
Posts: 2996
Loc: Watauga, TX
That may be true, just a concern I'd have.
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#6119349 - 01/05/16 07:43 AM Re: Bending a bolt [Re: booradley]
charlesb Offline
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Registered: 04/07/10
Posts: 1408
Loc: West Texas mountains
I for one would set the scope with the big eye-piece aside, and buy something better designed for use with your CZ.

When I have done this in the past, I have always wound up being glad that I did.

The scopes with the large eyepieces are, I believe, designed with the high-end European rifles in mind. These tend to have multiple locking lugs and reduced bolt lift.

For a CZ you will be much better off with a quality scope that is designed for use with a dual lug action. They are easy to spot - because the eyepiece won't be too large in diameter to allow mounting the scope at a useful height with your gun.


Edited by charlesb (01/05/16 07:57 AM)
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#6119369 - 01/05/16 07:58 AM Re: Bending a bolt [Re: booradley]
Deerhunter61 Online   content
THF Trophy Hunter

Registered: 08/27/08
Posts: 5471
Loc: DFW
Ive got the same rifle. I use the scope mounts that came with the rifle and although the bolt comes close to the scope it does prevent it from opening and closing. I had a Zeiss on it and now have a Swaro.

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#6119573 - 01/05/16 09:25 AM Re: Bending a bolt [Re: booradley]
RiverRider Online   content
THF Trophy Hunter

Registered: 11/11/07
Posts: 6199
Loc: Wise Co.
I'd look for scope alternatives also. I had to do this for my Win 52 because of the bolt, and use higher than optimum rings also. I would never consider altering the rifle itself.
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#6119799 - 01/05/16 11:04 AM Re: Bending a bolt [Re: Tff caribou]
FiremanJG Offline
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Registered: 12/16/08
Posts: 17893
Loc: Wolfe City, TX
Originally Posted By: Tff caribou


My vote, which is worth what you paid for it is, use high rings, and buy a stock pack that you can add comb height without modifying anything.


This
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#6120822 - 01/05/16 06:39 PM Re: Bending a bolt [Re: booradley]
charlesb Offline
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Registered: 04/07/10
Posts: 1408
Loc: West Texas mountains
There's a reason why shooters do not want the scope way up high above the bore.

I mean, besides the way it looks.
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#6120864 - 01/05/16 07:03 PM Re: Bending a bolt [Re: charlesb]
FiremanJG Offline
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Registered: 12/16/08
Posts: 17893
Loc: Wolfe City, TX
Please enlighten us as to why that is.

popcorn
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#6120955 - 01/05/16 07:39 PM Re: Bending a bolt [Re: FiremanJG]
charlesb Offline
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Registered: 04/07/10
Posts: 1408
Loc: West Texas mountains
Originally Posted By: FiremanJG
Please enlighten us as to why that is.

popcorn


Tell us why it isn't, if that's your theory... - I'd be interested to hear about that.

Why is it a good idea to have the scope way up high above the bore, as opposed to having it as low as you can get it, as hunters have striven to do since the rifle scope was invented?


Edited by charlesb (01/05/16 07:41 PM)
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#6120997 - 01/05/16 07:59 PM Re: Bending a bolt [Re: charlesb]
FiremanJG Offline
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Registered: 12/16/08
Posts: 17893
Loc: Wolfe City, TX
A scope sitting in high rings is not problem provided the rifle/ reticle is kept level with the world. Say a scope is sitting a full 3" above the bore, center to center, and zeroed at 100 yards. The holds are the same out as far as one wants to shoot as a scope sitting 1 1/2" above the bore, center to center. That is, beyond the zeroing distance.

The trick comes in when trying to hit inside 1 MOA inside 100 yards. The higher the scope is above the bore, the more correction is needed, due to sight offset. But no matter how high the scope is, precision at any distance is still achievable.

I think hunters wanted the scope closer to the bore because they weren't shooting level. And the closer it is, the less cant error was introduced.

I've shot 1 MOA from 7 yards (.07") to 77 yards, in 10 yard increments. 7 yard correction is the same as 875 yard correction on my rig. Have to hold it level, and have to hold it still, same as any shot.

Proper cheek weld, and natural point of aim are more important than keeping the scope close to the barrel. A scoped rifle should be set up to gain a sight picture almost as fast as gaining a bead on a shotgun.


Edited by FiremanJG (01/05/16 08:01 PM)
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#6121001 - 01/05/16 08:00 PM Re: Bending a bolt [Re: booradley]
MClark Online   content
Woodsman

Registered: 10/09/15
Posts: 115
Loc: Arizona
Forging, Polish, and reblueing a bolt runs about $65-115. The notch in the stock where the bolt handle goes will most likely need to be opened.
I would use a different scope.

Mark

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#6121065 - 01/05/16 08:36 PM Re: Bending a bolt [Re: FiremanJG]
charlesb Offline
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Registered: 04/07/10
Posts: 1408
Loc: West Texas mountains
Originally Posted By: FiremanJG
A scope sitting in high rings is not problem provided the rifle/ reticle is kept level with the world. Say a scope is sitting a full 3" above the bore, center to center, and zeroed at 100 yards. The holds are the same out as far as one wants to shoot as a scope sitting 1 1/2" above the bore, center to center. That is, beyond the zeroing distance.

The trick comes in when trying to hit inside 1 MOA inside 100 yards. The higher the scope is above the bore, the more correction is needed, due to sight offset. But no matter how high the scope is, precision at any distance is still achievable.

I think hunters wanted the scope closer to the bore because they weren't shooting level. And the closer it is, the less cant error was introduced.

I've shot 1 MOA from 7 yards (.07") to 77 yards, in 10 yard increments. 7 yard correction is the same as 875 yard correction on my rig. Have to hold it level, and have to hold it still, same as any shot.

Proper cheek weld, and natural point of aim are more important than keeping the scope close to the barrel. A scoped rifle should be set up to gain a sight picture almost as fast as gaining a bead on a shotgun.


In other words, you cannot come up with a single reason why it is a good idea to have the scope way up high above the bore, but you can come up with a bunch of "if this and if that" that explain how somebody could (maybe) overcome the handicap.

Then you disparage hunters for "not shooting level" because they have sought to keep their scopes down low for as long as scopes have been around.

I hate to break it to you, but there's a bit more to it than that. A lot of it has to do with a natural sight picture that one doesn't have to strain or crane - to obtain.

My rule of thumb on this is to close my eyes, then mount the rifle to my shoulder and get a good cheek weld as if to shoot. Then I pop open my eye - and if a good sight through the scope is not apparent, then I know that it is too high, or (more often) too far forward or back.

After doing this hundreds of times with hundreds of hunting rifles, I have yet to encounter a condition where the scope was too low... I cannot really say that this surprises me, though. Anybody with common sense should be able to figure out why hunters have always assayed to get a scope as low as they possibly can.
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#6121081 - 01/05/16 08:42 PM Re: Bending a bolt [Re: booradley]
kmon1 Online   content
junior

Registered: 09/27/06
Posts: 20282
Loc: Texas
Never owned a CZ 550 but have CZ 527. After Calhoun (20 cal rifle guys) started milling off some of the bolt handle and offering that service to customers and a couple others offering new bolt handles with more scope clearance CZ finally decided they could make that same modification to new guns but that took several years. The 527 modification allowed in many cases for medium rings to be used instead of high rings.

No idea if the same type mod would help with the 550 or not.
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