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CZ 550 bullet grouping

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Old 07-19-2010, 03:54 PM
Junior Member
Join Date: Dec 2009
Posts: 17
CZ 550 bullet grouping

I have a CZ550 in 22-250 with laminated stock and am trying to work up a good load for it. I have tried several loads with H380, Varget,H4895 using Hornady 55grn Vmax,40grn Vmax and Sierra 52grn hpbt. I get about the same group with each of these load but none are where I want the gun to be. Most are 1moa @100yds but I like my varmit gun to be 1/2moa or less.
I took the action out of the stock and the only thing I can see is the fron pilliar bushing is loose in the stock. Will that make a difference ? I have a lot of free bore in the barrel that I am not satisfied with. I have the 55grn Vmax COL @ 2.512". Maybe I am asking too much any help or advice appreciated. I have shoot rifles for 40+ years and pretty well know how to shoot from bench. I am serisouly considering glass bedding.
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Old 07-21-2010, 05:22 PM
Junior Member
Join Date: Dec 2009
Posts: 17
Re: CZ 550 bullet grouping

Well i still wasn't satisfied with out using some more powders and load combination. I finally got one using 38grns of 4007ssc and it will print one jaged hole at 100yrds from a five shot group, I guess I want have to do gun work after all. I was convienced the things i mentioned above were the problems and they should be dealt with but I believe i will leave well enough alone and start working on the ground hogs and coyotes.
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