8mm RM

[boomer68]

Anyone still loading for this round?

 

[Alderman]

I am. Loading for a Remington 700 out of the custom shop.

 

[Guy Miner]

Bullet has used it and posted up some tests on it. Not sure he still has the rifle.

Link: viewtopic.php?f=51&t=19952

 

[filmjunkie4ever]

I have owned 2 of these and have loaded for 4 total in my time. All 4 were Remington 700's. Great round! Just had to sell a few guns to pay medical bills and this one went with some of the others I had yet to have gotten real close to.

Any particular load you're looking for?

Have shot the , 175 Sierra Gameking, 200 PT, 220 Sierra Gameking, and 220 grain Hornadys.

The 175's kicked the most it seemed while the 220 Sierra and 200 PTs were about tied for accuracy in the guns I have loaded for. I feel like most people would get along best with a 200 or 220 loaded to 2800-2900 fps in this rifle.

 

[boomer68]

Just picked up my third. I seem to be attracted to this round for some reason
It is a M700 with a Six Enterprise synthetic stock.

For bullets, I still have some 180gr TSX, 200gr AB and 220gr Sierras. Thinking of starting with RL25. Got an upcoming elk hunt and want to try the big 8 out.


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[Alderman]

I purchased mine from my brother. He did have an odd experience with the Sierra bullets with this rifle. He punched one through the guts of a bull quartering toward him. Found the bullet in the back rear ham.
Except for the rifling marks and a slight bend, the bullet looked like it had just come out of the box.

 

[OU812]

I had one in a Remington 700 classic. Used a 200 TSX with RL-22, very accurate load. Also ran 220 Hornadys with RL-22 also very accurate.

Bill

 

[boomer68]

Could someone run QL with the 180 TSX and 200 AB with RL25 and 7828 please?


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[FOTIS]

I had 3 of them..

 

[7mmhunter]

I have had good luck with Barnes 160 TTSX RL17 just under 3400 fps

 

[boomer68]

I have had good luck with Barnes 160 TTSX RL17 just under 3400 fps

Wow, that is smoking!

 

[Dwh7271]

RL 25 is like 108% fill so I ran 22.
I'll attach the RL 25 also

Cartridge : 8 mm Rem. Mag.
Bullet : .323, 200, Nosler AccuBond 54374
Useable Case Capaci: 85.005 grain H2O = 5.519 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-22

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 62.34 2281 2310 27193 9456 87.0 1.650
-18.0 81 63.90 2340 2432 28990 9795 88.4 1.608
-16.0 83 65.46 2399 2556 30911 10126 89.8 1.568
-14.0 85 67.02 2459 2685 32961 10449 91.1 1.528
-12.0 87 68.58 2519 2818 35154 10762 92.4 1.489
-10.0 89 70.14 2579 2954 37499 11063 93.5 1.450
-08.0 91 71.70 2639 3093 40009 11352 94.6 1.405
-06.0 92 73.25 2699 3236 42696 11626 95.6 1.362
-04.0 94 74.81 2760 3382 45575 11885 96.5 1.321
-02.0 96 76.37 2820 3532 48663 12127 97.3 1.282
+00.0 98 77.93 2880 3684 51975 12351 97.9 1.243
+02.0 100 79.49 2940 3839 55501 12556 98.5 1.207
+04.0 102 81.05 3000 3998 59261 12740 99.0 1.171 ! Near Maximum !
+06.0 104 82.61 3060 4158 63289 12903 99.4 1.137 ! Near Maximum !
+08.0 106 84.16 3120 4322 67606 13043 99.7 1.103 !DANGEROUS LOAD-DO NOT USE!
+10.0 108 85.72 3179 4487 72238 13159 99.9 1.071 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba 98 77.93 2962 3897 57578 12333 99.6 1.190 ! Near Maximum !
Data for burning rate decreased by 5% relative to nominal value:
-Ba 98 77.93 2785 3445 46529 12185 95.1 1.304

 

[Dwh7271]

25

Cartridge : 8 mm Rem. Mag.
Bullet : .323, 200, Nosler AccuBond 54374
Useable Case Capaci: 85.005 grain H2O = 5.519 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-25

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 92 71.70 2552 2892 34995 11122 96.5 1.480
-18.0 94 73.49 2620 3050 37625 11415 97.5 1.435
-16.0 97 75.28 2689 3211 40471 11678 98.4 1.385
-14.0 99 77.07 2758 3377 43549 11909 99.1 1.337
-12.0 101 78.87 2826 3546 46881 12106 99.6 1.292
-10.0 103 80.66 2893 3718 50497 12267 99.9 1.247
-08.0 106 82.45 2961 3892 54421 12390 100.0 1.205
-06.0 108 84.24 3027 4069 58688 12487 100.0 1.164 ! Near Maximum !
-04.0 110 86.04 3093 4248 63335 12579 100.0 1.125 ! Near Maximum !
-02.0 113 87.83 3158 4429 68407 12665 100.0 1.087 !DANGEROUS LOAD-DO NOT USE!
+00.0 115 89.62 3223 4613 73952 12746 100.0 1.051 !DANGEROUS LOAD-DO NOT USE!
+02.0 117 91.41 3287 4799 80025 12821 100.0 1.015 !DANGEROUS LOAD-DO NOT USE!
+04.0 120 93.20 3351 4988 86695 12889 100.0 0.982 !DANGEROUS LOAD-DO NOT USE!
+06.0 122 95.00 3415 5181 94039 12951 100.0 0.949 !DANGEROUS LOAD-DO NOT USE!
+08.0 124 96.79 3480 5377 102146 13006 100.0 0.917 !DANGEROUS LOAD-DO NOT USE!
+10.0 126 98.58 3544 5576 111111 13052 100.0 0.887 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba 115 89.62 3287 4799 82690 12474 100.0 1.008 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba 115 89.62 3143 4386 65980 13078 100.0 1.100 ! Near Maximum !

 

[Dwh7271]

7828

Cartridge : 8 mm Rem. Mag.
Bullet : .323, 200, Nosler AccuBond 54374
Useable Case Capaci: 85.005 grain H2O = 5.519 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : IMR 7828 SSC

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 82 65.68 2394 2544 31023 10021 87.2 1.551
-18.0 84 67.32 2458 2683 33189 10380 88.7 1.509
-16.0 86 68.96 2523 2826 35517 10729 90.2 1.467
-14.0 88 70.61 2588 2974 38017 11065 91.6 1.425
-12.0 90 72.25 2653 3126 40701 11388 92.9 1.378
-10.0 92 73.89 2719 3283 43590 11694 94.1 1.333
-08.0 94 75.53 2785 3444 46698 11983 95.2 1.291
-06.0 96 77.17 2851 3609 50049 12253 96.1 1.249
-04.0 98 78.82 2917 3779 53665 12501 97.0 1.209
-02.0 100 80.46 2983 3953 57573 12726 97.8 1.171 ! Near Maximum !
+00.0 102 82.10 3050 4130 61800 12927 98.5 1.133 ! Near Maximum !
+02.0 104 83.74 3116 4311 66380 13102 99.0 1.097 !DANGEROUS LOAD-DO NOT USE!
+04.0 106 85.38 3182 4496 71352 13249 99.4 1.062 !DANGEROUS LOAD-DO NOT USE!
+06.0 108 87.03 3248 4684 76761 13367 99.8 1.029 !DANGEROUS LOAD-DO NOT USE!
+08.0 110 88.67 3313 4875 82653 13454 99.9 0.996 !DANGEROUS LOAD-DO NOT USE!
+10.0 112 90.31 3378 5069 89085 13510 100.0 0.965 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba 102 82.10 3133 4360 68385 12827 99.8 1.086 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba 102 82.10 2951 3868 55680 12822 95.8 1.187

Cartridge : 8 mm Rem. Mag.
Bullet : .323, 180, Barnes 'TSX' BT 32306
Useable Case Capaci: 87.544 grain H2O = 5.684 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : IMR 7828 SSC

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 65.68 2401 2304 28271 9463 82.7 1.525
-18.0 81 67.32 2464 2427 30120 9830 84.3 1.486
-16.0 83 68.96 2528 2554 32099 10192 85.9 1.449
-14.0 85 70.61 2592 2686 34217 10547 87.4 1.411
-12.0 87 72.25 2657 2822 36486 10893 88.8 1.375
-10.0 89 73.89 2723 2963 38915 11230 90.2 1.339
-08.0 91 75.53 2789 3109 41529 11554 91.5 1.304
-06.0 93 77.17 2855 3259 44331 11865 92.8 1.270
-04.0 95 78.82 2922 3413 47343 12160 93.9 1.230
-02.0 97 80.46 2990 3572 50587 12439 95.0 1.192
+00.0 99 82.10 3057 3735 54079 12698 96.0 1.156
+02.0 101 83.74 3125 3902 57847 12938 96.8 1.120 ! Near Maximum !
+04.0 103 85.38 3193 4074 61917 13155 97.6 1.085 ! Near Maximum !
+06.0 105 87.03 3260 4249 66321 13348 98.3 1.052 !DANGEROUS LOAD-DO NOT USE!
+08.0 107 88.67 3328 4428 71092 13516 98.8 1.019 !DANGEROUS LOAD-DO NOT USE!
+10.0 109 90.31 3396 4610 76273 13656 99.3 0.988 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba 99 82.10 3152 3971 59617 12805 98.4 1.106 ! Near Maximum !
Data for burning rate decreased by 5% relative to nominal value:
-Ba 99 82.10 2949 3476 48919 12399 92.3 1.210

 

[Dwh7271]

Cartridge : 8 mm Rem. Mag.
Bullet : .323, 180, Barnes 'TSX' BT 32306
Useable Case Capaci: 87.544 grain H2O = 5.684 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-25

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 88 70.63 2517 2533 30354 10490 92.0 1.485
-18.0 90 72.40 2585 2670 32439 10842 93.4 1.445
-16.0 92 74.16 2653 2813 34700 11174 94.8 1.406
-14.0 95 75.93 2721 2959 37121 11486 96.0 1.368
-12.0 97 77.70 2790 3110 39731 11773 97.0 1.331
-10.0 99 79.46 2858 3265 42545 12034 97.9 1.294
-08.0 101 81.23 2927 3424 45579 12266 98.7 1.256
-06.0 103 82.99 2995 3586 48858 12468 99.3 1.215
-04.0 106 84.76 3064 3752 52404 12636 99.7 1.176
-02.0 108 86.52 3132 3920 56246 12770 99.9 1.138
+00.0 110 88.29 3199 4090 60413 12869 100.0 1.101 ! Near Maximum !
+02.0 112 90.06 3266 4263 64941 12947 100.0 1.066 ! Near Maximum !
+04.0 114 91.82 3332 4438 69868 13021 100.0 1.031 !DANGEROUS LOAD-DO NOT USE!
+06.0 117 93.59 3398 4615 75239 13090 100.0 0.998 !DANGEROUS LOAD-DO NOT USE!
+08.0 119 95.35 3464 4795 81110 13153 100.0 0.966 !DANGEROUS LOAD-DO NOT USE!
+10.0 121 97.12 3529 4977 87539 13209 100.0 0.935 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba 110 88.29 3279 4299 67179 12565 100.0 1.054 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba 110 88.29 3099 3839 54210 13068 99.1 1.155

Cartridge : 8 mm Rem. Mag.
Bullet : .323, 180, Barnes 'TSX' BT 32306
Useable Case Capaci: 87.544 grain H2O = 5.684 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-22

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 87 70.63 2607 2715 34390 10708 90.2 1.422
-18.0 89 72.40 2675 2860 36846 11059 91.6 1.383
-16.0 91 74.16 2744 3009 39492 11395 92.9 1.345
-14.0 93 75.93 2813 3162 42345 11718 94.1 1.308
-12.0 95 77.70 2882 3320 45422 12023 95.2 1.270
-10.0 97 79.46 2952 3482 48745 12310 96.2 1.228
-08.0 100 81.23 3021 3648 52339 12576 97.1 1.188
-06.0 102 82.99 3091 3818 56228 12820 97.8 1.150
-04.0 104 84.76 3160 3992 60423 13040 98.5 1.112 ! Near Maximum !
-02.0 106 86.52 3230 4169 64926 13234 99.0 1.077 ! Near Maximum !
+00.0 108 88.29 3299 4350 69791 13401 99.5 1.042 !DANGEROUS LOAD-DO NOT USE!
+02.0 110 90.06 3368 4534 75060 13539 99.8 1.009 !DANGEROUS LOAD-DO NOT USE!
+04.0 113 91.82 3437 4721 80775 13647 100.0 0.976 !DANGEROUS LOAD-DO NOT USE!
+06.0 115 93.59 3505 4911 86985 13723 100.0 0.945 !DANGEROUS LOAD-DO NOT USE!
+08.0 117 95.35 3574 5104 93746 13782 100.0 0.915 !DANGEROUS LOAD-DO NOT USE!
+10.0 119 97.12 3641 5300 101123 13836 100.0 0.886 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba 108 88.29 3380 4567 77170 13186 100.0 0.999 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba 108 88.29 3202 4098 62494 13412 97.7 1.091 ! Near Maximum !

 

[boomer68]

Great, many thanks. Some pretty impressive speeds.


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[longrangehunter]

I just tuned a neighbors older and well worn Remington 700 in 8mm Rem. Mag. using the Speer 200 FB SP that he had on hand.

I first tried 82.0 gr. of IMR-7828 but quickly switched to 72.5 gr. of IMR-4350 ....... and boom the groups shrunk to 3/8" for a 3 shot group and 1/2" 5 shot group. Not super fast @ 2800 fps but w/ a 24" BBL slinging 200 grain bullets I don't think a cow Elk will no the difference?

This gun was shooting Factory Remington 185 gr. core locks at a modest velocity of only 2885 fps@20' with groups hovering around the 2" range and the Safari Grade ammo into 3 inch groups at 100 yards. So from his perspective the loss of speed (if you think it was any) meant nothing in comparison to the reduced group size.

 

[SJB358]

Sounds like an elk zapper to me. A 200 at 2800 would put the stomp on elk!

 

[longrangehunter]

Sounds like an elk zapper to me. A 200 at 2800 would put the stomp on elk!

You got that right Scotty! Even though Speer made the 200 gr. 8mm Hot-Core for the Remington Magnum, these as well as a lot of other bullets tend to work better on Game when the velocities aren't at an extreme level.

 

[SJB358]

Sounds like an elk zapper to me. A 200 at 2800 would put the stomp on elk!

You got that right Scotty! Even though Speer made the 200 gr. 8mm Hot-Core for the Remington Magnum, these as well as a lot of other bullets tend to work better on Game when the velocities aren't at an extreme level.

Please keep us in the loop if your friend is able to take an elk with the combo and how it works. I have a pretty good idea, it'll work well, but being the looney's we are, it is always nice to know the after the shot stuff too..