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  #21  
Old 07-17-2017, 10:28 PM
Ratbuster Ratbuster is offline
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Originally Posted by Ratbuster View Post
A 20 Practical/Tactical can often do 4200 with a hot load. The 204R a bit more comfortably. I shot 5 shots at 4450 fos with 32 vmax. The load was decidedly over pressurized and in fact on the last shot the primer popped out. Don't try that at home.
With 11 twist...
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  #22  
Old 07-17-2017, 10:30 PM
Don-T Don-T is offline
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In my .20 TAC, virtually the same as the practical, using 1-11 Shilen tube, 32's shoot great, 39 BK's are superb, 40 Vmax's are almost great but 50's yaw enough that I can't expect a hit on a 2" target at 200 yds. I would expect 1-10 twist is needed for the 50's.
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  #23  
Old 07-18-2017, 12:54 AM
GrocMax GrocMax is offline
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Originally Posted by Bill K View Post
I am at 5100 ft and shoot in the area of 4000-5400 ft. I can assure the 40 did not work, as well as the 39 grainers, when I had the 1-12 twist. All my 20's now sport 1-11 and work just fine, with all the bullet weights, we normally shoot in the 20's, including the 204 ruger. Bill K
Did they keyhole or show positive signs of not being stabilized, or just didn't shoot well for you?

I gave up on the 39BK a few years back as they would have too many grey puffs of bullet death in the scope when the barrel got the slightest bit dirty, and Sierra got real proud of them. 40vmax shot just as well and they cost a LOT less money when bought right. Don't dislike Blitzkings (especially the 6mm 70g), but they're too damn proud of them.
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  #24  
Old 07-18-2017, 01:57 AM
Bill K Bill K is offline
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Default Factory 204 12-twist

They just did not group at all, upwards of 2-3 inches. Bill K
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