Help Required - N560 load data/280Remington

Marshal · Jan 3, 2008

Hi,
New to the forum and just having received my new #6 reloading manual, I was a little disappointed to see next to no load data for N560 for the 280 Remington. Can any of the QL types provide some data for the 140AB and the 160 AB. (Case: WIN, Primer: Fed 210M or WLR) thanks very much.

Marshal

Powerstroke · Jan 3, 2008

Marshal,
First of all, welcome to the forum. You'll find quite a few in here with .280 experience as it's an awesome round. I use quite a bit of the Viht powder, but never have used the 560. One of my best loads for my .280 has been 57.0grains of N-165 & 150gr SilverTips. Win Case & CCI BR primers.

JD338 · Jan 4, 2008

Marshal,

Welcome to the forum.

I have not used Viht powders but here are my 280 Rem loads-

140 gr BT/PT
57.0 grs RL 19
R-P case
Fed GM210M primer

160 gr PT
54.0 grs IMR4831
R-P case
Fed GM210M primer

Both shoot well under MOA.

JD338

FOTIS · Jan 4, 2008

Marshal":ytet9gzu said:
Hi,
New to the forum and just having received my new #6 reloading manual, I was a little disappointed to see next to no load data for N560 for the 280 Remington. Can any of the QL types provide some data for the 140AB and the 160 AB. (Case: WIN, Primer: Fed 210M or WLR) thanks very much.

Marshal

Welcome to the forum.

V-powders are the best!

Cartridge : .280 Rem.
Bullet : .284, 140, Nosler AccuBond 59992
Cartridge O.A.L. L6: 3.330 inch or 84.58 mm
Barrel Length : 24.0 inch or 609.6 mm
Powder : Vihtavuori N560

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 85 48.00 2377 1757 28157 8904 80.7 1.545
-18.0 87 49.20 2443 1855 30112 9257 82.4 1.503
-16.0 90 50.40 2508 1956 32207 9606 84.1 1.463
-14.0 92 51.60 2575 2061 34466 9949 85.7 1.423
-12.0 94 52.80 2642 2170 36892 10284 87.2 1.384
-10.0 96 54.00 2710 2283 39491 10610 88.7 1.340
-08.0 98 55.20 2778 2400 42318 10925 90.0 1.296
-06.0 100 56.40 2847 2520 45354 11228 91.4 1.255
-04.0 102 57.60 2916 2643 48634 11517 92.6 1.214
-02.0 105 58.80 2986 2771 52178 11790 93.8 1.175 ! Near Maximum !
+00.0 107 60.00 3055 2902 56021 12046 94.8 1.138 ! Near Maximum !
+02.0 109 61.20 3125 3037 60188 12283 95.8 1.101 !DANGEROUS LOAD-DO NOT USE!
+04.0 111 62.40 3196 3175 64714 12499 96.7 1.066 !DANGEROUS LOAD-DO NOT USE!
+06.0 113 63.60 3266 3316 69644 12694 97.5 1.032 !DANGEROUS LOAD-DO NOT USE!
+08.0 115 64.80 3337 3461 75020 12865 98.2 0.998 !DANGEROUS LOAD-DO NOT USE!
+10.0 117 66.00 3408 3610 80897 13010 98.8 0.966 !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 107 60.00 3240 3264 68754 12173 99.3 1.044 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 107 60.00 2820 2472 45144 11229 85.9 1.257

Cartridge : .280 Rem.
Bullet : .284, 160, Nosler AccuBond 54932
Cartridge O.A.L. L6: 3.330 inch or 84.58 mm
Barrel Length : 24.0 inch or 609.6 mm
Powder : Vihtavuori N560

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 84 45.60 2263 1820 28835 8932 84.1 1.622
-18.0 86 46.74 2324 1919 30810 9265 85.7 1.579
-16.0 88 47.88 2385 2021 32927 9593 87.2 1.536
-14.0 90 49.02 2447 2127 35198 9913 88.6 1.495
-12.0 92 50.16 2509 2236 37634 10224 90.0 1.454
-10.0 94 51.30 2571 2348 40252 10524 91.3 1.407
-08.0 96 52.44 2634 2464 43065 10812 92.5 1.363
-06.0 98 53.58 2696 2583 46091 11088 93.7 1.320
-04.0 101 54.72 2759 2705 49358 11348 94.7 1.278
-02.0 103 55.86 2823 2831 52878 11592 95.7 1.239 ! Near Maximum !
+00.0 105 57.00 2886 2959 56679 11819 96.6 1.200 ! Near Maximum !
+02.0 107 58.14 2949 3091 60789 12027 97.3 1.162 !DANGEROUS LOAD-DO NOT USE!
+04.0 109 59.28 3013 3225 65242 12215 98.0 1.126 !DANGEROUS LOAD-DO NOT USE!
+06.0 111 60.42 3076 3363 70071 12381 98.6 1.091 !DANGEROUS LOAD-DO NOT USE!
+08.0 113 61.56 3140 3503 75322 12524 99.1 1.057 !DANGEROUS LOAD-DO NOT USE!
+10.0 115 62.70 3203 3646 81037 12643 99.5 1.025 !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 105 57.00 3047 3299 69505 11754 99.9 1.103 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 105 57.00 2675 2542 45587 11195 88.6 1.324

Marshal · Jan 6, 2008

Thanks to all and especially POP- That helps a lot.

Curently I'm using RL 19 (53.2 gr) and Fed 210M with the 160 AB. Groups are consistently .5 MOA...but, as always, I continue to try and find something a little different and better (perhaps .4 or .35).

Marshal

JD338 · Jan 6, 2008

Marshal":1ioq84rp said:
Thanks to all and especially POP- That helps a lot.

Curently I'm using RL 19 (53.2 gr) and Fed 210M with the 160 AB. Groups are consistently .5 MOA...but, as always, I continue to try and find something a little different and better (perhaps .4 or .35).

Marshal

Not sure what you are shooting but .5 MOA is very good accuracy.

JD338

FOTIS · Jan 6, 2008

No doubt! Half-inch rocks!

Marshal · Jan 6, 2008

I'm shoting a 280 remington configured as follows:

Accurate Iinnovations laminate thumbhole stock, pillar bedded and free floated, with M700 action mated to a 22" factory (remington) barrel, trigger 4 lbs
Load is:
Win Brass ( weight sorted to .2 of a gr)
Fed 210M primer
Nosler 160 AB (weight sorted for matching bullets, (i.e 159.9 or 159.8 etc)
COL is .015 from the lands/grooves (though I don't yet have a comparator to be really accurate)
RL 19 @53.2 gr

I have been trained in miltary sharpshooting (not sniping)

velocity is not Chronr'ed yet, would (book) estimate bewtween 2600 to 2700.

I think I will have to pivck up the QL program

My other favorite load is IMR 4831 @55 gr, win brass, fed 210M, Nosler CT BST 150 gr = consistent .5 MOA

JD338 · Jan 6, 2008

Marshal,

Sounds like a nice set up.
Try tha 160 gr load, 54.0 grs IMR4831 with the 160 gr AB. This should get you close to where you want to be, 2800 fps. My best group with a 160 gr PT was .400" at 100 yds. That would make for a dandy elk load.

JD338