I just purchased a CZ 602 ZKK that has been rebarreled and chambered in 416 Taylor. First I thought all 602s were BRNO, undoubtedly I am wrong. I purchased this rifle to make a 500 A2 for a PH buddy of mine. It has a bull barrel on it and a friend mentioned just reboring it and rechambering. Any advice on this? Thanks for the help

All ZKKs since 1966 are NOT made in Brno.

Jiri

Mike - I would price it.

My guess is that it would be less expensive simply to rebarrel it.

Nice project!

I think that a rebore will run you around 3-350. A rebarrel, I would guess, would be about 2-3 times that. Consider you have to buy a barrel, pay a gunsmith to install it, if you want open sights you have to add those plus installation cost, and then bluing, or whatever finish you choose, the barrel. Also consider that if your current barrel is not a "standard" contour, you will have to pay extra for custom contour of new barrel, or maybe end up with a very thick glass bedding, or having to open up current stock to fit a new barrel. If you want bluing to match, then you will have to refinish the rest of the rifle as well. Also I would bet the turnaround time is far less for a rebore versus rebarrel.

Who does re-bores these days?

J E S at www.35caliber.com among others I am sure.

My guess would be wrong. J E S is a bargain.

I wonder why they only rebore to increased bore diameters?

quote:

I wonder why they only rebore to increased bore diameters?

Haven't figured out a way to shrink them yet counseler!

quote:

Originally posted by kda55:

quote:

I wonder why they only rebore to increased bore diameters?

Haven't figured out a way to shrink them yet counseler!

Huh? One can bore out enough to put in a liner for the same or a smaller caliber. It is (or at least used to be) done all the time.

I'm just not sure why J E S doesn't seem to want to do it.

I guess it's easier for them just to rebore than to re-line.

Sorry sounded funny. I always figured a rebore was to larger diameter, liner to restore a junk barrel.

You are right. Re-boring is not re-lining.

Apart from the cost side there are other issues. I would imagine the main reason one opts to rebore rather than rebarrel is if the barrel has unique features that you’d like to retain, eg open sights, quarter rib, banded sling swivel, markings or other features.

In your specific case you’re planning to upgrade to 500A2 and that means you will want to end up with a much heavier rifle. Typically for a caliber like this you would probably end up in the 10-12lbs range (empty rifle and no scope), depending on your recoil tolerance.

I expect that alone would likely mean a rebarrel in your case and this way you specify the profile and length to reach the weight and handling characteristics you’re after.

Ah but that's a slippery slope. If the barrel contour is different now you've added a bedding job in addition to having the sights removed and installed. It adds up quickly

Yes, on a classic rifle, there may be barrel markings, profiles, or other characteristics that would be lost with a rebarrel....think Jeffery, Westley Richards, Griffin & Howe, etc.

You cannot reline a high pressure center fire cartridge barrel and no gunsmith will do that anyway. Black pewter, 22s, etc; sure.
And Reboring; I have it done for special contours as mentioned above, but if you want a quality bore, you need a new barrel.

quote:

Originally posted by Biebs:
Yes, on a classic rifle, there may be barrel markings, profiles, or other characteristics that would be lost with a rebarrel....think Jeffery, Westley Richards, Griffin & Howe, etc.

YOU LEFT OUT MOSSBERG!!!

Hip

quote:

Originally posted by dpcd:
You cannot reline a high pressure center fire cartridge barrel and no gunsmith will do that anyway. Black pewter, 22s, etc; sure.
And Reboring; I have it done for special contours as mentioned above, but if you want a quality bore, you need a new barrel.

dpcd could you please tell us why this is so, I always wondered why only up to 32/20 44/00 or so ?

I just had a buddy of mine bore out & reline a Lee Speed 303 Brit barrel & line it with a Bren or Vickers machine gun barrel, I haven't shot it a lot yet but I am curious ?

quote:

YOU LEFT OUT MOSSBERG!!! Roll Eyes Eeker archer

Butchloc would be incensed at my omission!