Range Report 4-3-10

General Firearms Reloading & Ammunition
1

Range report. 4-3-10

I went out and did some accuracy testing today. I found that H335 and N135 are much more accurate in my Noveske than Ramshot TAC.

Looks like I will be using either N135 or H335 at the larue match. I really wanted to use the TAC because its about 200 fps faster but the groups are not nearly as good.

N135 77 SMK

  1. .67
  2. 1.24
  3. .94
  4. 1.85
  5. 1.03
  6. 1.13
  7. 1.28
  8. 1.57
  9. .63
  10. 1.24
    Average group size 1.158


H335 77 SMK

  1. 1.025

  2. 1.13

  3. 1.89

  4. 1.30

  5. 1.55

  6. 1.45

  7. 1.00

  8. .99
    Average group size 1.29


    TAC 77 24 grain max

  9. 1.46

  10. 1.52

  11. 2.21

  12. 1.99
    Average 1.79

TAC 77 23.6 grains

  1. 1.79
  2. 1.56
  3. 3.00
  4. 2.10
  5. 2.74
    Average 2.238

TAC 75 Hornady

  1. 1.85
  2. 2.90
  3. 2.20
  4. 1.80
  5. 1.74
    Average 2.098

N135 75 Hornady

  1. 2.12
  2. 1.74
  3. 1.56
  4. 1.10
  5. 1.70
  6. 1.51
    Average 1.62
2

Looks like it dont like them heavy bullets or you need a match style trigger

3

Were those groups shot off a bench or offhand?

I like H335 but I found it to be dirty compared to N135. Have you tried Benchmark?

4

Actually it likes the heavy bullets just fine. The gun does not like TAC. if you notice all the loads are with 77 and 75 grain bullets even the good groups of .63. I also have a Geisselle Match set at 2.5 pounds. Not a trigger or operator issue.
Pat

5

Bench I am not anywhere near able to shoot 1 moa off hand. Thanks I may try Benchmark.
Pat

6

Well went shooting today at the 400 yard range. Did some chrono work as well. This group was at 200 yards when I was zeroing my rifle with Sierra’s 77 grain SMK with 21.6 grains of N135 using a Federal Match Primer.

The velocity results are below. My friend was also out with his MSAR.
4-4-10 Chrono Data

James MSAR 69 grain Sierra SMK powder H335

  1. 2787
  2. 2779
  3. 2780
  4. 2828
  5. 2764
    Average 2787
    Spread 64
    Power Factor 192

James MSAR 52 grain SMK powder H335

  1. 3188
  2. 3170
  3. 3121
  4. 3155
  5. 3151
    Average 3149
    Spread 67
    Power factor 163

Noveske 22.5 grains H335 Bullet 77 grain SMK

  1. 2537
  2. 2514
  3. 2623
  4. 2606
  5. 2521
    Average 2560
    Spread 109
    Power factor 197

Noveske 21.6 grains N135 Bullet 77 grain SMK

  1. 2479
  2. 2521
  3. 2539
  4. 2553
  5. 2550
    Average 2528
    Spread 74
    Power factor 194


MSAR group

The good news was I got my hold overs set out to 400 yards now. I also confirmed that the TA33 R9 ACOG on my Colt works great with my 77 grain reloads. I hit the gong at 400 yards again and again with ease.
Pat