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Gents - finally getting ready to tinker with this... have 760 and H4350 on hand... any tried and true loads or sage advice?
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Joined: Feb 2014
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Never used 160's and 4350 but Ive shot my share of 160's with RL 22 and IMR 7828 outta my 280
"Pride is the only disease that makes everyone sick except the one that has it"
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Used 160 Partitions and IMR4350 in my .280 with great success on elk for many years. I would surmise that H4350 would perform the same.
Good accuracy and lethal. The elk didn't know what hit 'em.
WB
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Campfire Ranger
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Campfire Ranger
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Never used 160's and 4350 but Ive shot my share of 160's with RL 22 and IMR 7828 outta my 280
Ditto. And add Norma MRP, & the 7828, being the SSC version. Either 4350 may be OK, but IMHO, they are both faster than optimum with that bullet weight & you will leave some velocity on the table. Newer RL-26 is likely a better choice today but I haven't used it in that combination. MM
Last edited by MontanaMan; 12/07/20. Reason: Corrected typo
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Campfire Tracker
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In my 284 Win (similar case size to 280) I found the 160 NP to be a real elk thumper.
I used 4350 a lot but turned to RL17 and have never looked back.
The 160 NP is a bit much for deer, but perfect for elk.
My 2 cents.
"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
Albert Einstein
At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".
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Campfire Tracker
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OP
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The plan is to develop the load as an elk and bigger round. (I use a 6.5cm with 129 interbonds for deer or a 30-30 depending on the situation.)
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Never used 160's and 4350 but Ive shot my share of 160's with RL 22 and IMR 7828 outta my 280
Ditto. And add Norma MRP, & the 7282, being the SSC version. Either 4350 may be OK, but IMHO, they are both faster than optimum with that bullet weight & you will leave some velocity on the table. Newer RL-26 is likely a better choice today but I haven't used it in that combination. MM Yep, RL26 in mine with the 160 Trophy Bonded Tip averages over 2900 fps and great accuracy.
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Never used 160's and 4350 but Ive shot my share of 160's with RL 22 and IMR 7828 outta my 280
Ditto. And add Norma MRP, & the 7282, being the SSC version. Either 4350 may be OK, but IMHO, they are both faster than optimum with that bullet weight & you will leave some velocity on the table. Newer RL-26 is likely a better choice today but I haven't used it in that combination. MM According to "Guns & Ammo" Dec. 2013, MRP and RL22 are the same powder, subject only to lot-to-lot differences.
"Keep your mouth shut, work hard. Life is tough. Work through it.” -- Stetson Bennett, Quarterback, Georgia Bulldogs
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I got great velocity with IMR7828SSC and the 160 gr. Speer Grand Slam. Accuracy, at least in my rifle wasn't so good. Tried the long discontinued WMR and got equal speed to the 7828 and .75" average groups. Probably could do just as well with the 7828 if I wanted to take the time playing with seating depth and the like. I see o reason why it wouldn't work just as well with the 160 gr. Noslers.
Paul B.
Our forefathers did not politely protest the British.They did not vote them out of office, nor did they impeach the king,march on the capitol or ask permission for their rights. ----------------They just shot them.
MOLON LABE
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According to "Guns & Ammo" Dec. 2013, MRP and RL22 are the same powder, subject only to lot-to-lot differences.
So they say..............looks a little different to me, though. But I've used the same charges of both for 20 years. MM
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Never used 160's and 4350 but Ive shot my share of 160's with RL 22 and IMR 7828 outta my 280
Ditto. And add Norma MRP, & the 7282, being the SSC version. Either 4350 may be OK, but IMHO, they are both faster than optimum with that bullet weight & you will leave some velocity on the table. Newer RL-26 is likely a better choice today but I haven't used it in that combination. MM Yep, RL26 in mine with the 160 Trophy Bonded Tip averages over 2900 fps and great accuracy. My M77 MarkII with 22 inch barrel getting 2975fps avg with 160gr SGK and RL26.
Those who must raise their voice to get their point across are generally not intelligent enough to do so in any other way.
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My M77 MarkII with 22 inch barrel getting 2975fps avg with 160gr SGK and RL26.
Sounds about right, what's your load?
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My M77 MarkII with 22 inch barrel getting 2975fps avg with 160gr SGK and RL26.
That is genuinely impressive..............if the pressure is not too high. JB, whattaya think????????????????? Or does anyone know what QL says about that load? Alliant does not list a 280 load with RL-26. MM
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Tatelaw, Sounds almost too good to be true. Without knowing for sure, my guess is your pressures may be in the red zone.
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My M77 MarkII with 22 inch barrel getting 2975fps avg with 160gr SGK and RL26.
That is genuinely impressive..............if the pressure is not too high. JB, whattaya think????????????????? Or does anyone know what QL says about that load? Alliant does not list a 280 load with RL-26. MM MontanaMan, I wish Alliant did...I emailed them maybe three years ago about 280 data and was told they haven't tested for it. I worked up to 61.5 with the 160 Trophy Bonded Tip and then backed down to 60.0, that gave me a five shot average of 2980 fps. I plugged it into QL and it predicted 2978 fps at 64K.
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Campfire 'Bwana
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My M77 MarkII with 22 inch barrel getting 2975fps avg with 160gr SGK and RL26.
That is genuinely impressive..............if the pressure is not too high. JB, whattaya think????????????????? Or does anyone know what QL says about that load? Alliant does not list a 280 load with RL-26. MM Quick Load says RL-26 is magic pixie dust and he's within the pressure standards for a .270 Winchester or should be fine in a modern bolt action rifle:
Cartridge : .280 Rem.
Bullet : .284, 160, Nosler AccuBond 54932
Useable Case Capaci: 58.204 grain H2O = 3.779 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Alliant Reloder-26 *C
Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.833% 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
-08.3 95 55.00 2656 2507 43923 12549 98.7 1.289
-07.5 96 55.50 2684 2559 45300 12639 99.0 1.270
-06.7 97 56.00 2712 2612 46745 12723 99.2 1.251
-05.8 98 56.50 2739 2666 48232 12801 99.4 1.233
-05.0 99 57.00 2767 2720 49775 12872 99.6 1.215
-04.2 100 57.50 2794 2774 51375 12937 99.7 1.197 ! Near Maximum !
-03.3 101 58.00 2822 2829 53035 12996 99.8 1.179 ! Near Maximum !
-02.5 101 58.50 2849 2884 54758 13047 99.9 1.162 ! Near Maximum !
-01.7 102 59.00 2876 2939 56545 13092 100.0 1.145 ! Near Maximum !
-00.8 103 59.50 2904 2995 58401 13129 100.0 1.129 !DANGEROUS LOAD-DO NOT USE!
+00.0 104 60.00 2931 3051 60328 13162 100.0 1.112 !DANGEROUS LOAD-DO NOT USE!
+00.8 105 60.50 2958 3108 62332 13194 100.0 1.096 !DANGEROUS LOAD-DO NOT USE!
+01.7 106 61.00 2985 3165 64415 13225 100.0 1.080 !DANGEROUS LOAD-DO NOT USE!
+02.5 107 61.50 3011 3222 66580 13255 100.0 1.064 !DANGEROUS LOAD-DO NOT USE!
+03.3 107 62.00 3038 3280 68831 13284 100.0 1.048 !DANGEROUS LOAD-DO NOT USE!
+04.2 108 62.50 3065 3337 71175 13311 100.0 1.033 !DANGEROUS LOAD-DO NOT USE!
You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.
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Campfire Outfitter
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Shot a caribou cow yesterday with 280 AI 160 gr Nosler AB RL 26 cold temps!
kk alaska
Alaska 7 months of winter then 5 months of tourists
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280 uses the .30-06 case, right? What about looking at .30-06 powders for 165 grain bullets?
If valid, maybe Big Game?
P
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I was just looking back through some of my old posts and noticed I never replied on here to the question about my load. I'm using 60.5 grains so it lines up pretty well with the Quickload prediction shown above.
Those who must raise their voice to get their point across are generally not intelligent enough to do so in any other way.
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