SmallCaliberCentral

Of note, if somebody has the inclination to try a wildcat, YOU need to work the loads up for YOUR rifle. I have three 223 AI's, none of them use the same load. PLEASE DON'T USE THIS DATA UNLESS YOU WORK UP!!!!!!!

Here is some velocity, bullet, and powder weight information.

All brass was fireformed last night and loaded today. Wind gusting 6-13 mph 20 degree right of center. Some of the loads can have the charge increased more and some of the loads are at the max.

75 gr AMax load using Benchmark provided an AWESOME group at 100 yards.

69 gr Nosler BTHP max load using H4895 was even better. Have a 3 shot node that is in the 1's. Believe I will work with this one a little bit.

I only tried the 55 gr VMax's just to try some. Will not be shooting bullets lighter than 69 grains in this rifle.

Of note, if somebody has the inclination to try a wildcat, YOU need to work the loads up for YOUR rifle. I have three 223 AI's, none of them use the same load. PLEASE DON'T USE THIS DATA UNLESS YOU WORK UP!!!!!!!

SHOT VELOCITY h4895 69 Nos
1 3115.2 25
2 3014.2 25.2
3 3011.7 25.4
4 3039 25.6
5 3076.2 25.8
6 3117 26
7 3126.7 26.2
8 3152.5 26.4
9 3169.7 26.6
10 3194.4 26.8
11 3247.9 27
12 3254.6 27.2
13 3279.7 27.4
14 3295.3 27.6
15 3346.1 27.8

(Hodgdon's Max load for standard 223 using 69 gr Sierra HPBT is: H4895 26.0C gr 3069 fps)

3311.1 26.2 h4895 55 gr vmax
3363.4 26.4 h4895 55 gr vmax
3392.3 26.6 h4895 55 gr vmax
3399.6 26.8 h4895 55 gr vmax
3437.7 27 h4895 55 gr vmax
3423 27.2 h4895 55 gr vmax
3463.5 27.4 h4895 55 gr vmax
3468.9 27.6 h4895 55 gr vmax
3496.4 27.8 h4895 55 gr vmax
3520.9 28 h4895 55 gr vmax

(Hodgdon's Max load for standard 223 using 55 gr SP is: H4895 26.0 gr 3315 fps)


VELOCITY h4895 75 amax
2948.3 24.6
2948.3 24.8
3015.8 25
3008.4 25.2
3061.7 25.4
3073.7 25.6
3079.6 25.8
3109.1 26
3167.9 26.2
3155.4 26.4
(Hodgdon's Max load for standard 223 using 75 gr JLK's is: H4895 24.5gr 2905 fps)

acloco,

In another life you must have been my little brother. As you post info on your projects I see so many things I've tested in the past.
Years ago I hotrodded a 223 with serious over-max powder charges(AI's were not in style yet) and I finally broke the rifle. I discovered that if I just shot a relatively conservative 22-250 load I had the same performance, less danger, and no broken parts.
Bless you little brother, and be carefull.

LOL!

Hotshot - notice that I am working up the loads with a chronograph. Which, really does not mean anything, but it makes me feel better. Best thing that a chrono can show you...when you velocity quits rising....y'all better quit while yer ahead!!!

Will post the 22/6mm AI info from this mornings jaunt to the range later today.

Sample of today's lot of rounds.

3129.3 75 Amax 5.179044313 (SD)
3141.8 75 Amax 3135.975 (avg)
3135.5 75 Amax
3137.3 75 Amax


3283.6 69 HPBT 6.428685713 (SD)
3274.8 69 HPBT 3284.56 (avg)
3290.4 69 HPBT
3290.4 69 HPBT
3283.6 69 HPBT