Preliminary
22/29.5 SMc Ballistics and Accuracy Results
(Note that inconsistent
neck tension and other problems related to case production almost
certainly limit accuracy potential)
Loads using 52-grain Match bullets (OAL: Watson, 1.829"; Berger, 1.840")
|
Primer |
Powder |
Charge |
Velocity |
Standard |
Group |
Notes |
|
400 |
N133 |
26.5 |
3539 |
13 |
1.18 |
Watson, Hard Bolt Lift |
|
27.0 |
3594 |
23 |
0.90 |
Berger, Hard Bolt Lift | ||
|
H322 |
27.0 |
3609 |
14 |
0.82 |
Watson | |
|
27.5 |
3647 |
19 |
0.46 |
Berger | ||
|
28.5 |
3747 |
19 |
1.22 |
Watson | ||
|
BL-C(2) |
31.0 |
3640 |
18 |
0.50 |
Watson | |
|
31.5 |
3667 |
31 |
1.78 |
Watson, Hard Bolt Lift | ||
|
BenchMark |
27.0 |
3507 |
8 |
0.81 |
Watson | |
|
27.5 |
3535 |
21 |
0.6 |
Watson | ||
|
W748 |
29.5 |
3588 |
10 |
1.80 |
Watson | |
|
31.0 |
3757 |
24 |
1.00 |
Watson, Hard Bolt Lift | ||
|
Rl-12 |
29.0 |
3694 |
21 |
1.45 |
Watson | |
|
30.0 |
3790 |
14 |
Watson | |||
|
H4895 |
28.0 |
3489 |
22 |
0.90 |
Watson | |
|
29.0 |
0.52 |
Watson, Hard Bolt Lift | ||||
|
4320 |
29.0 |
3624 |
9 |
0.38 |
Watson | |
|
N540 |
31.0 |
3697 |
9 |
0.73 |
Watson |
Following
Page
Preliminary 6.5mm/60 SMc Ballistics and Accuracy Results
(Note
that inadequate neck tension, harmfully short case necks and excessive
bullet-to-case runout probably tended to limit accuracy potential
during this preliminary testing)
All loads use Norma 130-gr. Match (moly-plated by Norma under NECO license) seated at 2.72-inch OAL (base of bullet flush with internal neck-to-shoulder juncture), all testing at near 75-degrees F
(Several groups contained called fliers (excessive runout?), typically an additional shot fired and called shot omitted)