This topic contains 7 replies, has 3 voices, and was last updated by  Jniedbalski 12 months ago.

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  • #68979
     Glenn 
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    Helloeverybody, sitting in a deer stand and pondering about why I can’t get my Mak90 to group good.

    Just saw a black bobcat with a stubby tail, anyway i have a set of Brownells crown tools and was thinking about re crowning it with an 11deg cutter. The Mak90 has a chrome plated bore, will this cause any problems?  I don’t want it to chip the chrome inside the barrel.

  • #68982
     Jniedbalski 
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    I had a guy at work retired now do several of his guns and my rifles. He did  two of his aks a sks and my two sks. That question came up about chrome lined barrel. He said he just went slow and it worked. He said all his guns had a improvement. I don’t know if this is the way to do it or not so going to see if anyone chimes in to the proper way . So for at looking at the crown it looks good no chipping and it actually looks like it  really did a good job on cutting

  • #68984
     Jniedbalski 
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    He also used the crown tool from Brownells

  • #68986
     Glenn 
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    Thanks much 🙂 I think that I’ll give it a whirl once I remember where they’re at.

  • #68989
     Larry Gibson 
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    Glenn

    What size “groups” is the MAK90 shooting?

    What ammo?

    Range?

    Position?

    Larry Gibson

  • #68996
     Glenn 
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    I’m getting around 4-5″ groups at 75yds off the bench with 2 bags.

    Ammo is mostly Tulammo 124gn sp and 154gn sp.

    Win 123gn fmj shoots a little tighter.

    I have tried hand loads with Barnes 123 Tacx and cfe blk that shoot around 4″

    The best I have ever got was back in 96 with Lapua fmj, with 3 into 1.5″ at 100 off the bench with open sights.   Im ordering some from Midway to see if it still works as well.

    I have tried a rear sight mount, and have soldered on a side mount also.  With the rear sight mount and 124 Tulammo I got one 10 shot group around 3″. But couldn’t repeat it.

  • #68997
     Glenn 
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    I replaced the trigger hammer group with the ALG AKL kit and then did the 2 stage trigger job on it, so I don’t have to wonder when it’s going to fire.

    I may just have to put it away for now and get the new Ruger AR in 450 Bushmaster.

  • #69002
     Jniedbalski 
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    I just used the Brownells crown tool on a 22 two ar’s and a savage 308. The cricket 22 cut  very easy soft steel. The palmetto ar with the chrome molly barrel cut very hard . This barrel seemed the hardest. The stanless palameto ar barrel was the seckond hardest. The savage axis seemed a little softer than the  Stanless. After doing four barrels my hand was wore out. Did it all by hand. All the crownes came out looking really good. If I had to go out to buy this tool I probably would not ,to expensive. But if a had a couple more to do I would defently buy it. It’s the pilots  thst get expensive. I got the set to borrow with the 22 lr 224 and 308 pilots with a few more I can’t use. Now I need a pilot for the 9 mm and 40 S&w  but at 25$ each plus shipping it gets expensive quick. At least the crowns look really good. I also found that one of the chamber reamer company’s also rent the crown cutter for I thank 25$ and the different pilots for 5$. I might rent the few pilots I need to finish my pistols. My high point 9 and two 40’s crown look like crap it deffently can’t hurt.

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