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Old September 30, 2000, 11:37 PM   #1
Senior Member
Join Date: January 1, 2000
Location: Roanoke, Virginia
Posts: 2,678
I have an early model Ruger Ultra-Lite in 223 that, when you use factory or my 26.5 to 27.5 grains of Winchester 748 the groupe opens up to 3 1/3 inches. I must wait 5 to 6 minutes for the "pencil thin" barrel to cool down.

I got disgusted and started shooting SQUIB loads at a velocity of 1850 feet per second.
Does anybody have any idea how far,in velocity, I can go before the groupe should start to spread?
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