Ram Shot Powder

[spires5d]

Has anyone tried Ram Shot Magnum powder with 150 grain Nosler BT'S in a 7mm Rem. Mag?I'm thinking about trying some from my supplier when they get some in stock for my 7 Mag. Never have used this powder before and I would need a little help on this. Have a good day.








7mm's Forever and a 30 cal. will "Slam Dunk Um"

 

[DrMike]

I use a fair amount of Ramshot powder in a variety of cartridges. Magnum is my least favourite, but it does work well in some applications. In the application you name (150 grain BT in 7mm RM), I'd likely first look at N560, IMR 7828, RL22, RL25 or Retumbo first. Magnum will work; but I would anticipate better case fill and likely better accuracy with these particular powders.

 

[FOTIS]

7mm= rl22

 

[SJB358]

I am with Fotis and Mike on this, RL22 and RL25 are pretty sweet in the 7mm Rem Mag with the 140's up to the 175's.

I would have thought Magnum would have been better in the 7RM, but I haven't cranked nearly as many rounds out as the Doc has.

But, if you have some, give it a whirl, I would be interested in your results..

Cartridge : 7 mm Rem. Mag.(SAAMI)
Bullet : .284, 150, Nosler BalTip 39586
Useable Case Capaci: 73.734 grain H2O = 4.787 cm³
Cartridge O.A.L. L6: 3.290 inch = 83.57 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Ramshot Magnum

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0 93 67.50 2811 2631 42689 12784 95.3 1.357
-09.0 94 68.25 2848 2701 44348 12940 95.9 1.332
-08.0 95 69.00 2885 2773 46082 13090 96.4 1.308
-07.0 96 69.75 2923 2845 47893 13231 96.9 1.285
-06.0 97 70.50 2960 2919 49787 13365 97.4 1.261
-05.0 98 71.25 2998 2994 51769 13491 97.9 1.239
-04.0 99 72.00 3036 3069 53845 13608 98.3 1.216
-03.0 100 72.75 3073 3146 56018 13716 98.6 1.194 ! Near Maximum !
-02.0 101 73.50 3111 3224 58296 13815 98.9 1.172 ! Near Maximum !
-01.0 102 74.25 3149 3302 60685 13904 99.2 1.151 ! Near Maximum !
+00.0 103 75.00 3186 3382 63189 13983 99.5 1.130 ! Near Maximum !
+01.0 104 75.75 3224 3462 65822 14052 99.7 1.109 !DANGEROUS LOAD-DO NOT USE!
+02.0 105 76.50 3262 3544 68585 14111 99.8 1.089 !DANGEROUS LOAD-DO NOT USE!
+03.0 106 77.25 3299 3626 71491 14159 99.9 1.069 !DANGEROUS LOAD-DO NOT USE!
+04.0 107 78.00 3337 3709 74547 14195 100.0 1.049 !DANGEROUS LOAD-DO NOT USE!
+05.0 108 78.75 3374 3792 77765 14221 100.0 1.030 !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 103 75.00 3353 3744 79273 13408 100.0 1.032 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 103 75.00 2947 2892 49643 13678 93.5 1.257