In the video linked below I'm firing 6.5x55 hand loads over a chronograph. The idea is to use the velocity and ballistic coefficient of the projectile to work out the ballistic curve, for long range shooting. But I think I'll be working the load up to a higher velocity, which hopefully will help improve the group size too - often does. These loads were Lapua cases and 45 grains of 2209 pushing Nosler Accubond 140 grain bullets. The average velocity from the 60cm barrel was 2667fps. The group size is 24mm; not as good as the 12.5mm three shot group from the previous week.
Monday 15 September 2014
Mauser M03 - Chronographing 6.5x55 Loads
In the video linked below I'm firing 6.5x55 hand loads over a chronograph. The idea is to use the velocity and ballistic coefficient of the projectile to work out the ballistic curve, for long range shooting. But I think I'll be working the load up to a higher velocity, which hopefully will help improve the group size too - often does. These loads were Lapua cases and 45 grains of 2209 pushing Nosler Accubond 140 grain bullets. The average velocity from the 60cm barrel was 2667fps. The group size is 24mm; not as good as the 12.5mm three shot group from the previous week.
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Regards, Rick.