Re: 6.5mm/284
I looked up the BC on the 142 SMK and the 155 SMK
Sierra MatchKing Bullets 6.5mm (264 Diameter) 142 Grain
Diameter: .264 inch
Bullet design: Jacketed hollow point
Sectional density: .291
Ballistic coefficient: .595 above 2850 fps, .580 from 2800 to 2400 fps, .575 from 2400 to 2050 fps, .550 below 2050 fps
Sierra MatchKing Bullets 6.5mm (.264 Diameter) 155 Grain Hollow Point Boat Tail
Diameter: .264 inch
Bullet Design: Jacketed Hollow Point
Sectional Density: .318
Ballistic Coefficient:
.570 above 2800 fps
.560 from 2800 to 2000 fps
.555 below 2000 fps
The 142g looks better until it gets below 2000fps. The velocity of the 142g would go under 2000fps around 700yrds then the 155g would have a .005BC advantage. I will half to get some of both of these bullets and see witch one performs best in my rifle on the longer shots. My barrel will be here in about a month. Thank you for your help?
Crow
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