pharmseller
Handloader
- Feb 13, 2012
- 557
- 95
I just got a stainless T3 in 7mm Rem Mag. I have a bunch of 150 E-Tips I'd like to push fast. Anyone have a pet load using MagPro or Retumbo?
Thanks,
P
Thanks,
P
7 Rem Mag, 150 E-Tips, MagPro & Retumbo
- Thread starter pharmseller
- Start date
DrMike
Ballistician
- Nov 8, 2006
- 37,850
- 7,628
Code:
Cartridge : 7 mm Rem. Mag.(SAAMI)
Bullet : .284, 150, Nosler E-Tip 59426
Useable Case Capaci: 72.057 grain H2O = 4.679 cm³
Cartridge O.A.L. L6: 3.290 inch = 83.57 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Accurate MAGPRO
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-20.0 80 56.56 2431 1969 29673 10504 84.4 1.598
-18.0 82 57.97 2498 2078 31790 10898 86.0 1.557
-16.0 84 59.39 2565 2191 34066 11283 87.5 1.517
-14.0 86 60.80 2632 2307 36514 11659 89.0 1.477
-12.0 88 62.22 2700 2428 39153 12023 90.4 1.430
-10.0 90 63.63 2768 2552 42002 12374 91.8 1.383
-08.0 92 65.04 2837 2680 45072 12710 93.0 1.338
-06.0 94 66.46 2905 2811 48371 13029 94.1 1.294
-04.0 96 67.87 2974 2946 51894 13329 95.2 1.253 ! Near Maximum !
-02.0 98 69.29 3043 3085 55681 13609 96.2 1.212 ! Near Maximum !
+00.0 100 70.70 3112 3227 59759 13867 97.0 1.173 ! Near Maximum !
+02.0 102 72.11 3182 3372 64157 14100 97.8 1.136 !DANGEROUS LOAD-DO NOT USE!
+04.0 104 73.53 3251 3520 68903 14309 98.4 1.099 !DANGEROUS LOAD-DO NOT USE!
+06.0 106 74.94 3320 3671 74034 14489 99.0 1.064 !DANGEROUS LOAD-DO NOT USE!
+08.0 108 76.36 3389 3825 79587 14641 99.4 1.030 !DANGEROUS LOAD-DO NOT USE!
+10.0 110 77.77 3458 3982 85610 14763 99.7 0.997 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 100 70.70 3286 3596 73076 13749 99.9 1.076 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 100 70.70 2884 2769 47166 13176 89.4 1.301Retumbo will be severely compressed.
Code:
Cartridge : 7 mm Rem. Mag.(SAAMI)
Bullet : .284, 150, Nosler E-Tip 59426
Useable Case Capaci: 72.057 grain H2O = 4.679 cm³
Cartridge O.A.L. L6: 3.290 inch = 83.57 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Hodgdon Retumbo
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-20.0 90 60.40 2444 1989 28922 11045 90.4 1.598
-18.0 93 61.91 2515 2107 31037 11460 92.2 1.555
-16.0 95 63.42 2587 2229 33321 11852 93.9 1.512
-14.0 97 64.93 2660 2356 35793 12215 95.3 1.470
-12.0 99 66.44 2733 2487 38467 12547 96.6 1.424
-10.0 102 67.95 2806 2623 41366 12844 97.7 1.374
-08.0 104 69.46 2880 2762 44513 13102 98.6 1.326
-06.0 106 70.97 2953 2904 47932 13319 99.3 1.280
-04.0 109 72.48 3026 3050 51653 13492 99.7 1.235
-02.0 111 73.99 3098 3198 55711 13617 100.0 1.192 ! Near Maximum !
+00.0 113 75.50 3171 3348 60145 13698 100.0 1.151 ! Near Maximum !
+02.0 115 77.01 3242 3501 64999 13765 100.0 1.111 !DANGEROUS LOAD-DO NOT USE!
+04.0 118 78.52 3313 3655 70322 13826 100.0 1.072 !DANGEROUS LOAD-DO NOT USE!
+06.0 120 80.03 3383 3812 76177 13881 100.0 1.034 !DANGEROUS LOAD-DO NOT USE!
+08.0 122 81.54 3453 3972 82636 13928 100.0 0.998 !DANGEROUS LOAD-DO NOT USE!
+10.0 124 83.05 3523 4134 89779 13968 100.0 0.963 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 113 75.50 3327 3687 75011 13066 100.0 1.052 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 113 75.50 2931 2861 47833 13803 96.0 1.279- Thread starter
- #3
pharmseller
Handloader
- Feb 13, 2012
- 557
- 95
I'm surprised the max load is so much lower than the other 150 grain bullets. I guess that's what you get with the monometals.
P
P
- Thread starter
- #4
pharmseller
Handloader
- Feb 13, 2012
- 557
- 95
New info:
I'm kissing the lands at 3.408", max mag length is 3.366", so I'm off the lands 0.042."
Nosler recommends a jump for these bullets I believe.
P
I'm kissing the lands at 3.408", max mag length is 3.366", so I'm off the lands 0.042."
Nosler recommends a jump for these bullets I believe.
P
DrMike
Ballistician
- Nov 8, 2006
- 37,850
- 7,628
It is a good idea to allow at least 0.050 inches of jump.
- Thread starter
- #7
pharmseller
Handloader
- Feb 13, 2012
- 557
- 95
Well, the T3 didn't like the seating depth much. It didn't like the 150 NABLR at the same COAL, either.
Recoil was surprisingly mild. I'm going to run a depth test starting at max mag length, 3.366, which still gives me 0.040" jump, and seat deeper in 0.030" increments.
My brother has a T3 that likes the 168 NABLR seated long, so I'm going to try that as well.
On a positive note, my Ruger American shot lights out with Varget and 140 NAB. Well under an inch. It likes 140 NAB and RL 17, too. The Varget load came in at 2777 ft/sec. but I didn't chrono the RL 17.
P
Recoil was surprisingly mild. I'm going to run a depth test starting at max mag length, 3.366, which still gives me 0.040" jump, and seat deeper in 0.030" increments.
My brother has a T3 that likes the 168 NABLR seated long, so I'm going to try that as well.
On a positive note, my Ruger American shot lights out with Varget and 140 NAB. Well under an inch. It likes 140 NAB and RL 17, too. The Varget load came in at 2777 ft/sec. but I didn't chrono the RL 17.
P
- Thread starter
- #9
pharmseller
Handloader
- Feb 13, 2012
- 557
- 95
SJB358":1gijjqng said:
That's where I started. 0.1" off. Mag length constricts me to .040" to start, so I can start closer.
P
