I spent the day at the range working on some loads and a box of 140 gr Nosler Custom Comp bullets I just got. I have been shooting 139 gr Scenars and 142 gr SMK's, I started low though because it is a new bullet. The Nosler CC's are shorter than the other two but they have more bearing surface than both. I was working with LVR (my favorite), 8208, and 2520. After a previous post and questions reagarding my crono's calibration and my velocity readings I tested my crono against a .22LR with a published velocity, my crono actually read a hair lower but I had it 15' from my muzzle so that is probably about right, long story short I think my crono is accurate. It was a good day for shooting with only a slight 5mph wind in my face.
All shots were from a 20" barrel.
140 gr Nosler CC's.
CCI 450 primers.
Hornady brass.
five shot groups.
LVR
30 gr.
2353 fps average.
19 fps extreme spread.
7 fps standard deviation.
200 yard group.
Shanes phone 501.jpg
30.2 gr.
2372 fps average velocity.
26 fps extreme spread.
9 fps standard deviation.
200 yard group.
Shanes phone 500.jpg
The groups aren't great but I think they will tighten up with some tweaking on the seating depth.
8202
26.5 gr.
2302 fps average.
37 fps extreme spread.
12 fps standard deviation.
27 gr.
2323 fps average.
30 fps extreme spread.
11 fps standard deviation.
Didn't shoot for accuracy yet, but I think there is promise here.
2520
29 gr.
2354 fps average.
49 fps extreme spread.
17 fps standard deviation.
Lousy accuracy, and ejector marks which I always seem to get with this powder even with lighter loads/published loads.
On a side note if there is interest in my Scenar and SMK loads I will post them.
All shots were from a 20" barrel.
140 gr Nosler CC's.
CCI 450 primers.
Hornady brass.
five shot groups.
LVR
30 gr.
2353 fps average.
19 fps extreme spread.
7 fps standard deviation.
200 yard group.
Shanes phone 501.jpg
30.2 gr.
2372 fps average velocity.
26 fps extreme spread.
9 fps standard deviation.
200 yard group.
Shanes phone 500.jpg
The groups aren't great but I think they will tighten up with some tweaking on the seating depth.
8202
26.5 gr.
2302 fps average.
37 fps extreme spread.
12 fps standard deviation.
27 gr.
2323 fps average.
30 fps extreme spread.
11 fps standard deviation.
Didn't shoot for accuracy yet, but I think there is promise here.
2520
29 gr.
2354 fps average.
49 fps extreme spread.
17 fps standard deviation.
Lousy accuracy, and ejector marks which I always seem to get with this powder even with lighter loads/published loads.
On a side note if there is interest in my Scenar and SMK loads I will post them.
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