Today Konnor and I went to see how consistent my most recent 308 hand-loads are. Here are the results. It appears I have made a round that is 138-117 fps faster (taking my avg. speeds compared) than the Black Hills Match ammo (comparing today's two 10 shot strings against a string of 8 that was shot on 5/7/10), and more consistent (my Extreme Spreads today were about 40 fps, while the Black Hills Match was 60.99). Obviously I would have to put more Black Hills Match ammo through the Chrony to confirm, but these results are promising.
10 Shots - 175 gr Sierra BTHP, 45 Grains of Varget Powder, CCI 200 primers, Lapua Brass
Low: 2731
High: 2770
Avg: 2751
Extreme Spread: 39.39
Standard Deviation: 14.03
2770
2755
2754
2745
2770
2747
2761
2740
2731
2732
10 More Shots - 175 gr Sierra BTHP, 45 Grains of Varget Powder, CCI 200 primers, Lapua Brass
Low:2716
High:2758
Avg: 2730
Extreme Spread: 41.47
Standard Deviation: 13.00
2736
2739
2723
2716
2739
2758
2728
2719
2725
2718
10 Shot of Lenny's Guns-n-Ammo - 175 gr Sierra BTHP Custom Ammo
I forgot to store the exact figures, but this is what I wrote down real quick from memory:
Low: 2642
High: 2692
Avg: 2670
Extreme Spread: 50
Standard Deviation: 17-19
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