My Browning 26 inch 9.5 twist rifle barrel likes hand loaded 7mm 168 grain Nosler ABLR with a hot load of IMR 4831 per Nosler web load data. I chrono’d an average of 3005 fps. Wow! These are cookin’ !! COAL was 3.255 inches. No pressure signs except the primer was a bit flatter… as expected. Three rounds measured 3/4 inch but more testing will firm that up. I will change the trigger to a Timney at some point as it is impractical to easily adjust with a 2mm Allen wrench on a sealant filled screw. If you like 4 pounds for a factory trigger it works, for some hunters, not me. All my rifles are set near 3 pounds.
Research with Bryan Litz Applied Ballistics Book finds that the Nosler 175g ABLR Form Factor of 0.94 is considered low drag but the 168g ABLR is considered VLD Very Low Drag with Form Factor of 0.896 thus holding its energy better at long range than the 175g ABLR.
Assuming I use the 168 Nosler ABLR for long range Newfoundland moose hunting, I can reach out in a large open terrain tundra-like bog with my BOG tripod Death Grip to steady the shot out to 600 yards.
Distances I will practice this summer, in prep for the hunt, is out to 600 yards. With a 300 yd zero, at 100 yards the bullet is 3 inches high and 150 yards is 4 inches high, dead-on at 300 yards and Max Point Blank Range is 376 yards. At 600 yards terminal energy is 1822 ft-lbs and still traveling over 2200 fps. At 400 yds it holds a truck-load of energy at 2200 ft-lbs. Just have your laser rangefinder at hand and be ready for a follow-up shot. The 60 degree bolt throw is a big plus for very fast second shots.
Below is the JBM ballistic report for the Nosler 168g ABLR at 3005fps and zeroed for 300 yards.
Trajectory |
Input Data |
Manufacturer: |
Nosler |
Description: |
Accubond Long Range Spitzer (G7) |
Caliber: |
0.284 in |
Weight: |
168.0 gr |
Ballistic Coefficient: |
0.353 G7 (ASM) |
|
|
|
Muzzle Velocity: |
3005.0 ft/s |
Distance to Chronograph: |
10.0 ft |
|
Sight Height: |
1.50 in |
Sight Offset: |
0.00 in |
Zero Height: |
0.00 in |
Zero Offset: |
0.00 in |
Windage: |
0.000 MOA |
Elevation: |
0.000 MOA |
Line Of Sight Angle: |
0.0 deg |
Cant Angle: |
0.0 deg |
|
Wind Speed: |
10.0 mph |
Wind Angle: |
90.0 deg |
Target Speed: |
10.0 mph |
Target Angle: |
90.0 deg |
Target Height: |
48.0 in |
|
|
|
Temperature: |
45.0 °F |
Pressure: |
29.92 in Hg |
Humidity: |
0 % |
Altitude: |
0.0 ft |
|
Vital Zone Radius: |
5.0 in |
|
|
|
Std. Atmosphere at Altitude: |
No |
Pressure is Corrected: |
Yes |
Zero at Max. Point Blank Range: |
No |
Target Relative Drops: |
Yes |
Mark Sound Barrier Crossing: |
No |
Include Extra Rows: |
No |
Column 1 Units: |
1.00 in |
Column 2 Units: |
1.00 MOA |
Round Output to Whole Numbers: |
No |
|
|
Output Data |
Elevation: |
6.548 MOA |
Windage: |
0.000 MOA |
|
Atmospheric Density: |
0.07859 lb/ft³ |
Speed of Sound: |
1101.3 ft/s |
|
Maximum PBR: |
376 yd |
Maximum PBR Zero: |
318 yd |
Range of Maximum Height: |
174 yd |
Energy at Maximum PBR: |
2318.7 ft•lbs |
|
Sectional Density: |
0.298 lb/in² |
|
|
Calculated Table |
Range |
Drop |
Drop |
Windage |
Windage |
Velocity |
Mach |
Energy |
Time |
Lead |
Lead |
(yd) |
(in) |
(MOA) |
(in) |
(MOA) |
(ft/s) |
(none) |
(ft•lbs) |
(s) |
(in) |
(MOA) |
0 |
-1.5 |
*** |
0.0 |
*** |
3009.8 |
2.733 |
3378.7 |
0.000 |
0.0 |
*** |
50 |
1.4 |
2.8 |
0.1 |
0.2 |
2938.4 |
2.668 |
3220.4 |
0.050 |
8.9 |
17.0 |
100 |
3.4 |
3.2 |
0.4 |
0.4 |
2867.8 |
2.604 |
3067.5 |
0.102 |
18.0 |
17.2 |
150 |
4.3 |
2.7 |
1.0 |
0.6 |
2798.0 |
2.541 |
2920.0 |
0.155 |
27.3 |
17.4 |
200 |
4.0 |
1.9 |
1.8 |
0.8 |
2729.1 |
2.478 |
2777.8 |
0.209 |
36.8 |
17.6 |
250 |
2.6 |
1.0 |
2.8 |
1.1 |
2661.0 |
2.416 |
2640.9 |
0.265 |
46.6 |
17.8 |
300 |
-0.0 |
-0.0 |
4.1 |
1.3 |
2593.7 |
2.355 |
2509.2 |
0.322 |
56.7 |
18.0 |
350 |
-3.9 |
-1.1 |
5.6 |
1.5 |
2527.4 |
2.295 |
2382.5 |
0.381 |
67.0 |
18.3 |
400 |
-9.2 |
-2.2 |
7.4 |
1.8 |
2462.1 |
2.236 |
2260.9 |
0.441 |
77.6 |
18.5 |
450 |
-15.9 |
-3.4 |
9.5 |
2.0 |
2397.7 |
2.177 |
2144.1 |
0.503 |
88.5 |
18.8 |
500 |
-24.1 |
-4.6 |
11.9 |
2.3 |
2334.2 |
2.120 |
2032.2 |
0.566 |
99.6 |
19.0 |
550 |
-33.9 |
-5.9 |
14.6 |
2.5 |
2271.7 |
2.063 |
1924.8 |
0.631 |
111.1 |
19.3 |
600 |
-45.4 |
-7.2 |
17.6 |
2.8 |
2210.3 |
2.007 |
1822.1 |
0.698 |
122.9 |
19.6 |
650 |
-58.7 |
-8.6 |
20.9 |
3.1 |
2149.8 |
1.952 |
1723.7 |
0.767 |
135.0 |
19.8 |
700 |
-73.9 |
-10.1 |
24.6 |
3.4 |
2090.3 |
1.898 |
1629.7 |
0.838 |
147.4 |
20.1 |
|
|