Quick Load help

[scout1]

Would someone please run these variables on QL for me.
Using H-414 and N-560 in a 28" 1/12 twist 30 cal tube 300WSM
Looking for load with as close to 100% burn effic using a 155 Lapua Scenar and a 175 Berger VLD. Looking for 3200 fps range. I know this takes a bit of time, but I sure would appreaciate the help.
I'm thinking maybe I am not getting accurate readings from my used PAL Chrony. I have been averaging 3205 fps with the 155's over 63.3 grns of H-414. Average of 3088 fps with the 175's over 60 grns of H-414 using the Chrony. My results at the range using JMB ballistic calcs are off by almoast a full 2-MOA low impact at 600 yds using the 155's and 175's. JMB calls for 9.7 moa elevation at 600 from a 100 yd zero on the 155's / actual adjustment is 11.5 moa. I have the identicle set of rings on both scopes. Warren Maxima Extra High. Zero cant on scope and I am testing off of a Caldwell BR rest with a built in level. Average altitude in Fl where I shoot is 13' above sea level
I had just switched scopes before the trip and zeroed at 100 once there. I put on the NF 12-42 x 56 I bought for the 7 wsm Chris Matthews is building me. I believe that both scopes are moa not inches, at least thats what the turret says. I even played around with the Temp and humidity by 10 degrees and 10 percent humid and still arrived with the same adjustments from JBM. All rounds were loaded .020 into the lands using a comparitor. The mirrage was fairly heavy from left to right,no tail winds. All shots were fairly horizontal with very little verticle, 94 degrees and 82 % humidity after a rain the night before. I have cleaned the lenses on the Chrony and have a good set up 12' from the muzzle. If I can get someone to run the numbers for me I can find the weak link, Chrono or other.

I would appreciate any thoughts and Data

Thanks, Scout1

 

[scout1]

Is everyone scared to jump in on this one. Somebody out there has the answer, or can help me figure it out. I'm stumped... PLEASE HELP !!!!

 

[Atomic_Cowboy]

I don't know if this is exactly what you are asking for but here is my best try. I'll post the 175 Berger next. You may have to decipher a little.

Good Luck,
DG

__________________________________________________________________________



Trajectory for Lapua .308 dia. 155 gr. HPBT Scenar at 3200 Feet per Second
At an Elevation Angle of: 0 degrees
Ballistic Coefficients of: 0.508 0.508 0.508 0.508 0.508
Velocity Boundaries,Feet per Second) of: 2400 2400 2400 2400
Wind Direction is: 3.0 o'clock and a Wind Velocity of: 0.0 Miles per hour
Wind Components are,Miles per Hour): DownRange: 0.0 Cross Range: 0.0 Vertical: 0.0
The Firing Point speed of sound is: 1120.22 fps
The bullet does not drop below the speed within the max range specified.
Altitude: 13 Feet with a Standard Atmospheric Model.
Temperature: 59 F
Data Printed in English Units
Range,Yards) Velocity,Ft/Sec) Energy,Ft/Lbs) Bullet Path,inches) Bullet Path,1 MoA) Wind Drift,inches) Wind Drift,1 MoA) Time of Flight,Seconds)
0 3200 3523.7 -1.6 0 0 0 0
50 3100.8 3308.7 -0.35 -0.7 0 0 0.0476
100 3003.9 3105.1 0 0 0 0 0.0968
150 2909.2 2912.3 -0.61 -0.4 0 0 0.1475
200 2816.4 2729.6 -2.26 -1.1 0 0 0.1999
250 2725.6 2556.4 -4.99 -1.9 0 0 0.2541
300 2636.7 2392.3 -8.9 -2.8 0 0 0.31
350 2549.5 2236.8 -14.06 -3.8 0 0 0.3679
400 2464 2089.1 -20.55 -4.9 0 0 0.4277
450 2380 1949.2 -28.48 -6 0 0 0.4897
500 2297.7 1816.7 -37.94 -7.2 0 0 0.5538
550 2217 1691.3 -49.05 -8.5 0 0 0.6203
600 2137.8 1572.7 -61.92 -9.9 0 0 0.6892
650 2060.3 1460.7 -76.7 -11.3 0 0 0.7606
700 1984.4 1355.1 -93.52 -12.8 0 0 0.8348
750 1910.3 1255.7 -112.56 -14.3 0 0 0.9119
800 1837.9 1162.4 -133.97 -16 0 0 0.9919
850 1767.5 1075 -157.96 -17.7 0 0 1.0752
900 1699 993.4 -184.73 -19.6 0 0 1.1617
950 1632.8 917.4 -214.51 -21.6 0 0 1.2518
1000 1568.7 846.8 -247.56 -23.6 0 0 1.3456

 

[Atomic_Cowboy]

175 Berger VLD .308




Trajectory for Berger .308 dia. 175 gr. MATCH VLD at 3088 Feet per Second
At an Elevation Angle of: 0 degrees
Ballistic Coefficients of: 0.528 0.528 0.528 0.528 0.528
Velocity Boundaries,Feet per Second) of: 2080 2080 2080 2080
Wind Direction is: 3.0 o'clock and a Wind Velocity of: 0.0 Miles per hour
Wind Components are,Miles per Hour): DownRange: 0.0 Cross Range: 0.0 Vertical: 0.0
The Firing Point speed of sound is: 1120.22 fps
The bullet does not drop below the speed within the max range specified.
Altitude: 13 Feet with a Standard Atmospheric Model.
Temperature: 59 F
Data Printed in English Units
Range,Yards) Velocity,Ft/Sec) Energy,Ft/Lbs) Bullet Path,inches) Bullet Path,1 MoA) Wind Drift,inches) Wind Drift,1 MoA) Time of Flight,Seconds)
0 3088 3704.8 -1.6 0 0 0 0
50 2995 3485 -0.32 -0.6 0 0 0.0493
100 2904 3276.4 0 0 0 0 0.1002
150 2814.8 3078.3 -0.71 -0.5 0 0 0.1527
200 2727.5 2890.2 -2.53 -1.2 0 0 0.2068
250 2641.8 2711.5 -5.51 -2.1 0 0 0.2627
300 2557.8 2541.8 -9.73 -3.1 0 0 0.3204
350 2475.3 2380.6 -15.29 -4.2 0 0 0.38
400 2394.3 2227.3 -22.26 -5.3 0 0 0.4416
450 2314.8 2081.8 -30.74 -6.5 0 0 0.5053
500 2236.8 1943.9 -40.85 -7.8 0 0 0.5712
550 2160.3 1813.1 -52.7 -9.2 0 0 0.6395
600 2085.2 1689.3 -66.41 -10.6 0 0 0.7102
650 2011.7 1572.2 -82.12 -12.1 0 0 0.7834
700 1939.7 1461.7 -99.98 -13.6 0 0 0.8593
750 1869.4 1357.7 -120.14 -15.3 0 0 0.9381
800 1800.7 1259.8 -142.8 -17 0 0 1.0199
850 1733.9 1168 -168.13 -18.9 0 0 1.1048
900 1669 1082.2 -196.36 -20.8 0 0 1.193
950 1606.1 1002.2 -227.71 -22.9 0 0 1.2846
1000 1545.4 927.9 -262.43 -25.1 0 0 1.3799

 

[js223]

You should check out Bryan Litz's articles in Precision Shooting where he tests BC's of 30 caliber match bullets. If you use the tested BC instead of the advertised one, it may give more accurate calculations.

 

[scout1]

Atomic cowboy and jss223, I appreciate the efforts it appears you have run the same ballistic calc that I did using jmb and just left out the factors I listed in my plea for help. When I use jbm or jmb, what ever ) I make the selection from the library, but leave the BC at .5 for both bullets, add the current conditions and press go. These cals have worked fine for my .308 in the past. What I dint have access to is the QL program that covers so many other variables.
If I have left any questions unanswered in my initial post that might help with a solution, let me know.

Thanks, Scout1

 

[300wsm]

I need seating depths or col for both bullets I will then run it for you

 

[scout1]

300wsm. col for the scenar is 2.950
col for the 175 VLD is 3.010

I'm running these in a long action.

Thanks for the help, Scout1

 

[300wsm]

175gr H414 60gr

175gr H414 65gr

175gr N160 70.5gr

155gr H414 63.3gr

155gr H414 65.7gr

155gr N160 71gr

My pet load

 

[scout1]

300wsm, Thank you very much for the info. This confirms my thoughts on the Chrono. I will have to find someone at the range who has one I can borrow for a day since mine may be defective. Was there no info for N-560 in the QL library. That is what I have 4 lbs of, not the 160, or are the comparisons between the two so close it dosent matter. I was told the 560 is a high energy powder and that I should expect 50 to 75 fps faster results.

Are you also on PLRH. I see your same screen name there as well.

Thanks, Scout1

 

[300wsm]

Scout1 sorry I really needed to RTFQ so here are the results for N560

155gr

175gr

 

[scout1]

Your the best. Really appreaciate the help.

Scout1