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  #11  
Old 04-24-2018, 04:30 AM
Oso Polaris Oso Polaris is offline
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Location: Houston, Texas
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Default Why 3 Groove for 6x45

Quote:
Originally Posted by GrocMax View Post
I'm with foxhunter, 'cept go 3 groove 8 twist, budget shooting the 70 varmageddon or TNT at 3100-3200 FPS in front of AA2200 280+K RPM easy on barrel and splats. I feel strongly the 6x45 or any 6mm 223 needs at least 2.400" OAL capable mags, its stunted in a 2.260" OAL world. 27"-28" barrel is a definite plus for velocity over 20-24".
I run a couple of larger 6mm's in a 1:8 twist 24" barrels with 5R and 6 grooves. I'm interested in understanding your preference of a 3 groove barrel for the 6x45. Thanks
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  #12  
Old 04-24-2018, 12:51 PM
Spook Spook is offline
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Quote:
Originally Posted by JC in Calif View Post
Thinking about having a CZ 527 I rarely shoot re-barreled to 6x45 (I have other .223’s). Was considering using mostly 70gr bullets. Looking for some input from those shooting a 6x45. Powers, twist rate, bullets, accuracy? Would be used mostly for PDogs.

Thanks...
I shoot 6X45 Ackley Imp with Nosler "6mm shots" using Varget or Leverlution and it works pretty well out to 450 or so....
beyond that I'm typically reaching for something that utilizes a PPC or 308 bolt face anyway
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  #13  
Old 04-24-2018, 01:24 PM
Bayou City Boy Bayou City Boy is offline
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I played with a 6x45 for a couple of PD seasons and found it to be only marginal in terms of something extra at much more than normal 223 Rem range.

I went to a 6MM/250 and I found a whole new world of fun shooting 55 grain and heavier 6MM bullets. And with the 250 case, barrel life is excellent and the 6MM/250 can handle bullets heavier than the 6x45 if desired.

Added: I've found that 3 groove barrels stabilize bullets extremely well and they are far easier to clean than a barrel with 5 or 6 grooves.

JMO - BCB
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Last edited by Bayou City Boy; 04-24-2018 at 01:28 PM.
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  #14  
Old 04-24-2018, 02:46 PM
southernman southernman is offline
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Ive got a cooper 6x45 with 20' 1-10 twist barrel, very happy with it, flat base bullets slightly more accurate that boat tails,
CFE.223 or varget, with the 75-85gr, and H4198 with 60-65gr, its not fussy and everything combo, is inside an inch, except 85gr Speer (shotgun pattern)
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  #15  
Old 04-24-2018, 03:23 PM
GrocMax GrocMax is offline
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Quote:
Originally Posted by Oso Polaris View Post
I run a couple of larger 6mm's in a 1:8 twist 24" barrels with 5R and 6 grooves. I'm interested in understanding your preference of a 3 groove barrel for the 6x45. Thanks
Leade lasts significantly longer for me in varminting use.
Not sure why but it do.
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