Need opinions on 6.5CM loads

[lawrence97]

I shot a ladder and then tested what I thought would be the correct loads that showed promise at 800 yards. All rounds were loaded with H4350, 140 Amax bullets, Hornady brass, federal primers and temps between 40-50F with winds from 9-17mph so I tried to ignore horizontal. The area I live in always has winds and those are the conditions I shoot in, so a perfect day is non existent for load development. As for velocities, I could not get the chrono to stay still with varying winds!

So, based on your observations and data given, which seems to be the best pick?

Thanks.

Data:
2,3,4- 3.5" vertical, 3.25" horizontal

5,6,7- 2.75" vertical, 3.5" horizontal

9,10- .5" vertical, 1" horizontal

28" from shots 1-10 vertical spread
8.5" from shots 1-4 horizontal spread

5 rd groups:
1-5@43
5"vertical, 12" horizontal
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6"vertical, 6" horizontal

5 rd groups:
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3"vertical, 6.5" horizontal
2.1-2.5@43
6.5"vertical, 5" horizontal

Two 5 shot group averages:
Avg @43: 5.75"v, 8.5"h
Avg @43.3: 4.5"v, 6.25"h

Two 3rd groups (Round Robin)
A1-A3 5" vertical, 11" horizontal @41.8
B1-B3 3" vertical, 4.5" horizontal @42.1
C1-C3 6.5" vertical, 5.5" horizontal @42.4
A4-A6 2.5" vertical, 9" horizontal @41.8
B4-B6 6" vertical, 5.25 horizontal @ 42.1
C4-C6 2.5" vertical, 5.5" horizontal @ 42.4

 

[lawrence97]

Re: Need opinions on 6.5CM loads

Forgot to provide averages for the two 3rd groups shot round robin style:
Avg @41.8: 3.75"v,10"h
Avg @42.1: 4.5"v,4.87"h
Avg @42.4: 4.5"v, 5.5"h