New Tuner Design

Thanks for the feedback Gene,

What you are saying makes sense, like you said, if the velocity was always the same with any old load then presumably the rifle would shoot well with all loads and at all velocities. Unfortunately that isn't the case of course !

I haven't chronographed my loads to get velocity spread figures so I must do that and see what I see. Perhaps the hotter loads simply don't exhibit the same velocity spread as lower loads due to the pressures involved ? I know one 10 shot group I fired at 200 metres (around 220 yards) had 0.20 total vertical spread, that was 30.4 grains N133 with a 66 Ultra, the velocity spread would logically be pretty low to achieve that.

Many thanks, keep up the good work.

Bryce
 
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