Author Topic: CZ 527 conversionFinished (Read 15878 times)

jay.sharkbait · « **on:** May 01, 2015, 06:36:52 PM »

I have always wanted to convert a 7.62x39 Mini Mauser or CZ 527 to 264 LBC/6.5 Grendel.

Recently I managed to talk Yorketransport into doing one,(didn't take much) and here are some pics of the doner rifle. I'm really excited to see how it turns out.

Last one is the beginnings of the action wrench.

And if anyone is concerned about the rock, it was very gently positioned.

wadu1 · « **Reply #1 on:** May 01, 2015, 07:23:37 PM »

Keep us posted on the project. I'm a CZ fan with 6 in my stable.

Biggerhammer · « **Reply #2 on:** May 01, 2015, 07:24:47 PM »

Neat project, Yorke had mentioned it. Do tell? What length , twist and barrel make? Are the open sights going to be implemented onto the new barrel? Is the new barrel going to be finished satin stainless or coated to match the receiver?

Hmmmm? A readily available CZ action wrench..

jay.sharkbait · « **Reply #3 on:** May 01, 2015, 07:57:03 PM »

Quote from: Biggerhammer on May 01, 2015, 07:24:47 PM

Neat project, Yorke had mentioned it. Do tell? What length , twist and barrel make? Are the open sights going to be implemented onto the new barrel? Is the new barrel going to be finished satin stainless or coated to match the receiver?

Hmmmm? A readily available CZ action wrench..

It's getting a 19" 1/8 twist Black Hole barrel. We are going to leave the sights off and I plan to bead blast the barrel and leave the rec'r blued. The bluing and finish work on the rifle is outstanding BTW.

I figure the best way to go is to make a proper internal action wrench. We were looking at our existing wrenches and decided to spend time and do it right.

fly-by · « **Reply #4 on:** May 01, 2015, 10:05:11 PM »

Looks like they are now selling actions

http://www.thefirearmblog.com/blog/2015/04/27/cz-usa-will-offer-7-62x39-527-receiver-assemblies-for-sale/

Don't know about pricing. It may make more sense to just buy the whole donor.

I think this would make a great "short course" precision rifle if you could get 10rd mags.

yorketransport · « **Reply #5 on:** May 02, 2015, 09:02:34 AM »

Quote from: fly-by on May 01, 2015, 10:05:11 PM

Looks like they are now selling actions

http://www.thefirearmblog.com/blog/2015/04/27/cz-usa-will-offer-7-62x39-527-receiver-assemblies-for-sale/

Don't know about pricing. It may make more sense to just buy the whole donor.

I think this would make a great "short course" precision rifle if you could get 10rd mags.

My experience with past projects has been that it's cheaper to buy a donor rifle than just an action when you can get away with it. Plus, sometimes you get lucky and get one with a nice piece of wood like this one has! A friend of mine wants to start shooting some of the PRS matches and I actually thought about trying this rifle in one to see how it does.

I thought about having iron sights put on but this rifle was intended for "my son"

. I think that a VX-2 2-7x28 ultralight scope will be the perfect match. I'm hoping to have the completed rifle weigh 6.5-7 # when it's done. It will be a pleasure for me, I mean my son, to carry around.

I have to admit that I'm almost embarrassed to be seen with such a small caliber though. I have a reputation to keep up! I'll have to make up for this on the next project.

Andrew

jay.sharkbait · « **Reply #6 on:** May 02, 2015, 09:36:45 AM »

Quote from: yorketransport on May 02, 2015, 09:02:34 AM

Quote from: fly-by on May 01, 2015, 10:05:11 PM
Looks like they are now selling actions

http://www.thefirearmblog.com/blog/2015/04/27/cz-usa-will-offer-7-62x39-527-receiver-assemblies-for-sale/

Don't know about pricing. It may make more sense to just buy the whole donor.

I think this would make a great "short course" precision rifle if you could get 10rd mags.

My experience with past projects has been that it's cheaper to buy a donor rifle than just an action when you can get away with it. Plus, sometimes you get lucky and get one with a nice piece of wood like this one has! A friend of mine wants to start shooting some of the PRS matches and I actually thought about trying this rifle in one to see how it does.

I thought about having iron sights put on but this rifle was intended for "my son" . I think that a VX-2 2-7x28 ultralight scope will be the perfect match. I'm hoping to have the completed rifle weigh 6.5-7 # when it's done. It will be a pleasure for me, I mean my son, to carry around.

I have to admit that I'm almost embarrassed to be seen with such a small caliber though. I have a reputation to keep up! I'll have to make up for this on the next project.

Andrew

The mags are pretty skinny but I can check Monday and see if .458 SOCOM will fit.............

fly-by · « **Reply #7 on:** May 02, 2015, 06:41:43 PM »

Quote from: yorketransport on May 02, 2015, 09:02:34 AM

A friend of mine wants to start shooting some of the PRS matches and I actually thought about trying this rifle in one to see how it does.

Andrew

There is one close to you in Eatonville the first Saturday of the month. I shot in today's match. The highest round count for any given stage was 12, with some fewer. Two mag changes or one mag change and 2 single loads would not be a huge disadvantage. It's a great way to replicate hunting situations when compared to shooting off a bench.

kodiak 907 · « **Reply #8 on:** May 02, 2015, 07:26:33 PM »

Why not keep it iron sights? I got my first Cz last year and it is a shooter. I like the 7.6 with the removable mag and round feed. Is the 6.8 a better deer/black bear round than the 7.6. I don't have much experience with either.

I am thinking of getting a 527 for a brush gun for blacktail/bear.

Sweet gun.

kodiak 907 · « **Reply #9 on:** May 02, 2015, 07:27:12 PM »

6.5 typo

Biggerhammer · « **Reply #10 on:** May 02, 2015, 07:48:49 PM »

The .264 LBC / Grendel will eat a 6.8 SPC for lunch and still want more.

Blackhole Weaponry does do a 6.5x6.8, they just necked the case down and made it right with the world. What it should have been to start with.

kodiak 907 · « **Reply #11 on:** May 02, 2015, 08:08:51 PM »

Quote from: Biggerhammer on May 02, 2015, 07:48:49 PM

The .264 LBC / Grendel will eat a 6.8 SPC for lunch and still want more.

Blackhole Weaponry does do a 6.5x6.8, they just necked the case down and made it right with the world. What it should have been to start with.

I like what I'm hearing. Looks like my new 527 will be a donor as well. Thanks for the advice guys

yorketransport · « **Reply #12 on:** May 02, 2015, 08:23:42 PM »

Quote from: kodiak 907 on May 02, 2015, 07:26:33 PM

Why not keep it iron sights?

Because I'm nearly blind and won't admit it!

I'm just excited to see how the 160 grain Matrix VLD shoots out of this. I might even be able to get the bullet out of the barrel before it starts to tumble.

Andrew

HawkCreek · « **Reply #13 on:** May 03, 2015, 04:33:33 PM »

It's hard enough not buying one of those little 527's as they are but then you have to go and start a project like this... Might be to much for me to resist even if my bank account will hate me for it.

jay.sharkbait · « **Reply #14 on:** May 11, 2015, 06:28:48 PM »

Ok, barrel is now off.

The internal wrench didn't work that great. The bolt body has a very small diameter and the wrench tended to twist in torsion.

Went ahead and made an outside wrench that captures the recoil lug and a Teflon block that goes over the receiver rail.

Just waiting on barrel and we'll see how it shoots.

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