300 Remington Ultra Mag Power Level Ammo?

[trays7940]

Anyone have any experience with these remington loads which allows the 300 ultra mag to be a 30.06 or a 300 win mag.?
I was wondering how they did this. Do they load to a specific speed that causes the round to act like the other rounds or what?
Anyone have any trajectory info or range experience with this. Sounds like a great idea but is it? :?

 

[FOTIS]

Basically lighter loads in the 300 RUM Brass. No biggie anyone who reloads can do this.


With sloww powders and relatively fast ones...for the caliber that is.

Cartridge : .300 Rem Ultra Mag
Bullet : .308, 180, Nosler PART SP 16331
Cartridge O.A.L. L6: 3.598 inch or 91.39 mm
Barrel Length : 26.0 inch or 660.4 mm
Powder : Hodgdon H4895

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 61 56.00 2429 2359 33045 8284 100.0 1.671
-18.0 63 57.40 2473 2444 34871 8417 100.0 1.637
-16.0 64 58.80 2516 2529 36774 8548 100.0 1.605
-14.0 66 60.20 2558 2615 38757 8678 100.0 1.568
-12.0 67 61.60 2599 2700 40821 8806 100.0 1.531
-10.0 69 63.00 2640 2785 42971 8932 100.0 1.494
-08.0 70 64.40 2680 2871 45208 9057 100.0 1.460
-06.0 72 65.80 2720 2956 47536 9180 100.0 1.427
-04.0 73 67.20 2759 3042 49957 9301 100.0 1.395
-02.0 75 68.60 2797 3128 52476 9421 100.0 1.365
+00.0 76 70.00 2836 3214 55096 9539 100.0 1.336
+02.0 78 71.40 2873 3300 57820 9655 100.0 1.307 ! Near Maximum !
+04.0 79 72.80 2911 3386 60654 9769 100.0 1.280 ! Near Maximum !
+06.0 81 74.20 2948 3473 63600 9882 100.0 1.254 ! Near Maximum !
+08.0 82 75.60 2984 3560 66664 9993 100.0 1.229 !DANGEROUS LOAD-DO NOT USE!
+10.0 84 77.00 3021 3647 69851 10102 100.0 1.205 !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 76 70.00 2891 3341 62486 9362 100.0 1.265 ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba 76 70.00 2754 3032 47319 9792 100.0 1.430





Cartridge : .300 Rem Ultra Mag
Bullet : .308, 180, Nosler PART SP 16331
Cartridge O.A.L. L6: 3.598 inch or 91.39 mm
Barrel Length : 26.0 inch or 660.4 mm
Powder : Accurate 8700

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 79 76.80 2044 1671 19835 8169 74.5 2.056
-18.0 81 78.72 2101 1765 21147 8547 76.5 2.008
-16.0 83 80.64 2159 1863 22558 8925 78.4 1.961
-14.0 85 82.56 2218 1967 24076 9301 80.4 1.914
-12.0 87 84.48 2279 2075 25710 9674 82.3 1.868
-10.0 89 86.40 2340 2188 27472 10042 84.1 1.823
-08.0 91 88.32 2402 2306 29372 10401 85.9 1.777
-06.0 93 90.24 2465 2429 31421 10751 87.7 1.732
-04.0 95 92.16 2529 2556 33635 11088 89.3 1.688
-02.0 97 94.08 2594 2688 36027 11411 90.9 1.645
+00.0 99 96.00 2659 2825 38621 11718 92.3 1.595+
02.0 101 97.92 2724 2966 41430 12006 93.7 1.543
+04.0 103 99.84 2790 3111 44482 12272 94.9 1.492
+06.0 105 101.76 2856 3261 47797 12515 96.0 1.443
+08.0 107 103.68 2923 3415 51409 12733 97.0 1.395
+10.0 109 105.60 2990 3572 55347 12924 97.9 1.349 ! Near Maximum !

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 99 96.00 2859 3267 48435 12143 98.6 1.444
Data for burning rate decreased by 10% relative to nominal value:
-Ba 99 96.00 2413 2328 30672 10496 81.0 1.747
.701

 

[Richracer1]

This is just my opinion, but why would you want a 300RUM to shoot like a 30-06? If you want 06 performance, buy an 06. 30-06 brass and loaded ammo are far cheaper than RUM brass and ammo.
To each their own. Cheers

 

[JD338]

This is just my opinion, but why would you want a 300RUM to shoot like a 30-06? If you want 06 performance, buy an 06. 30-06 brass and loaded ammo are far cheaper than RUM brass and ammo.
To each their own. Cheers

Its a marketing ploy.
I agree with you, if ya got it, use it! :lol:

Pop is spot on, reloaders have been doing this for years. :wink:

JD338

 

[trays7940]

Yup... Agreed.

Was thinking about using the smaller loads for practice but then I thought... Im not practicing with a 300 rum :wink:

I may be slow but I aint stupid... :wink:

I love this forum.... :lol:

 

[FOTIS]

There you go......