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You probably won't like my reply, but I'm going to try to save you some effort and money:
It's a waste of time. The 6.5x55, loaded to modern pressures will do practically anything the 25-06 or 6.5-06 will do. The 65.x55, let alone the 25-06 or 6.5-06, is enough overbore that the additional case capacity will buy you practically nothing.
I have an instrumented 6.5x55, and can safely get 3050 FPS out of a 120 grain pill. That is fast enough that you have to use a premium bullet, or risk bullet overexpansion if the target animal is within 100 yards.
So, having flirted with the same idea, and having built a conventional 6.5x55, my suggestion is to skip the AI. I don't think the dance is worth the candle.
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10-13-2006, 10:05 PM
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