270win 130 or 140 AB and ramshot magnum. quick load or loads

[Sas874runner]

I have 4lbs of ramshot magnum and would like to see what I can make of it in a 270 win. Quickload info or favorite recipes would be great?

 

[gerry]

I plan on trying it in a 270 Win when we finally get one into the gun safe but with 140 gr and heavier in our case. Ramshot's data looks good.

http://www.ramshot.com/wp-content/uploa ... _rifle.pdf

 

[DrMike]

Cartridge : .270 Win. (SAAMI)
Bullet : .277, 140, Nosler AccuBond 54765
Useable Case Capaci: 59.393 grain H2O = 3.856 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Ramshot Magnum

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 86 51.28 2294 1637 28753 10054 85.2 1.492
-18.0 88 52.56 2364 1738 31002 10459 87.1 1.448
-16.0 90 53.84 2436 1844 33454 10851 88.9 1.405
-14.0 92 55.13 2508 1955 36136 11226 90.6 1.362
-12.0 95 56.41 2581 2071 39074 11583 92.2 1.314
-10.0 97 57.69 2655 2191 42297 11917 93.7 1.265
-08.0 99 58.97 2730 2317 45844 12225 95.1 1.217
-06.0 101 60.25 2805 2447 49754 12504 96.3 1.170
-04.0 103 61.54 2882 2581 54079 12751 97.3 1.125
-02.0 105 62.82 2958 2720 58874 12962 98.2 1.082 ! Near Maximum !
+00.0 108 64.10 3035 2864 64214 13134 98.9 1.040 ! Near Maximum !
+02.0 110 65.38 3113 3012 70177 13264 99.5 0.999 !DANGEROUS LOAD-DO NOT USE!
+04.0 112 66.66 3191 3165 76867 13349 99.8 0.959 !DANGEROUS LOAD-DO NOT USE!
+06.0 114 67.95 3269 3321 84408 13385 100.0 0.921 !DANGEROUS LOAD-DO NOT USE!
+08.0 116 69.23 3347 3482 92953 13378 100.0 0.884 !DANGEROUS LOAD-DO NOT USE!
+10.0 118 70.51 3425 3647 102688 13356 100.0 0.848 !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 108 64.10 3204 3191 80741 12619 100.0 0.949 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 108 64.10 2796 2430 50688 12709 91.9 1.157

 

[FOTIS]

Cartridge : .270 Win. (SAAMI)
Bullet : .277, 130, Nosler AccuBond 54987
Useable Case Capaci: 60.320 grain H2O = 3.916 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Ramshot Magnum

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 81 48.00 2094 1266 21546 8440 71.1 1.618
-18.0 83 49.20 2155 1341 23021 8864 73.2 1.577
-16.0 85 50.40 2218 1420 24608 9291 75.2 1.536
-14.0 87 51.60 2283 1504 26331 9720 77.3 1.496
-12.0 89 52.80 2349 1592 28191 10148 79.3 1.456
-10.0 91 54.00 2416 1685 30203 10572 81.2 1.417
-08.0 93 55.20 2485 1782 32386 10991 83.2 1.378
-06.0 95 56.40 2555 1885 34755 11401 85.0 1.340
-04.0 97 57.60 2627 1992 37333 11799 86.8 1.300
-02.0 99 58.80 2700 2104 40141 12184 88.5 1.254
+00.0 101 60.00 2774 2221 43207 12553 90.2 1.210
+02.0 103 61.20 2849 2342 46561 12901 91.7 1.167
+04.0 105 62.40 2925 2469 50239 13227 93.2 1.125
+06.0 107 63.60 3002 2601 54283 13527 94.5 1.085
+08.0 109 64.80 3080 2738 58743 13798 95.7 1.045 ! Near Maximum !
+10.0 111 66.00 3158 2880 63676 14037 96.7 1.007 ! Near Maximum !

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 101 60.00 2892 2414 48045 12977 94.6 1.151
Data for burning rate decreased by 5% relative to nominal value:
-Ba 101 60.00 2644 2018 38783 11903 84.5 1.276









Cartridge : .270 Win. (SAAMI)
Bullet : .277, 140, Nosler AccuBond 54765
Useable Case Capaci: 59.402 grain H2O = 3.857 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Ramshot Magnum

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 48.00 2110 1384 23415 9037 75.7 1.616
-18.0 84 49.20 2172 1467 25065 9467 77.7 1.573
-16.0 86 50.40 2236 1555 26850 9897 79.7 1.531
-14.0 88 51.60 2302 1647 28774 10323 81.7 1.490
-12.0 90 52.80 2369 1744 30873 10743 83.6 1.449
-10.0 92 54.00 2437 1846 33142 11155 85.5 1.409
-08.0 94 55.20 2506 1953 35611 11557 87.3 1.369
-06.0 96 56.40 2577 2064 38298 11944 89.0 1.324
-04.0 98 57.60 2648 2180 41226 12315 90.6 1.277
-02.0 100 58.80 2721 2301 44417 12666 92.1 1.231
+00.0 102 60.00 2794 2427 47933 12995 93.5 1.187
+02.0 104 61.20 2868 2557 51780 13299 94.8 1.144
+04.0 106 62.40 2943 2692 56014 13573 96.0 1.103 ! Near Maximum !
+06.0 108 63.60 3019 2833 60687 13817 97.0 1.062 ! Near Maximum !
+08.0 111 64.80 3095 2978 65861 14025 97.9 1.023 !DANGEROUS LOAD-DO NOT USE!
+10.0 113 66.00 3172 3127 71609 14196 98.7 0.985 !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 60.00 2904 2622 53439 13258 97.1 1.130
Data for burning rate decreased by 5% relative to nominal value:
-Ba 102 60.00 2670 2216 42916 12486 88.6 1.251


Cartridge : .270 Win. (SAAMI)
Bullet : .277, 150, Hornady SP 2740
Useable Case Capaci: 60.582 grain H2O = 3.934 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Ramshot Magnum

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 80 48.00 2083 1445 23996 9521 78.8 1.647
-18.0 82 49.20 2144 1531 25668 9952 80.7 1.604
-16.0 84 50.40 2206 1621 27482 10380 82.6 1.561
-14.0 86 51.60 2270 1716 29436 10803 84.5 1.519
-12.0 88 52.80 2334 1815 31550 11218 86.3 1.478
-10.0 90 54.00 2400 1918 33837 11623 88.0 1.437
-08.0 92 55.20 2466 2026 36318 12013 89.7 1.397
-06.0 94 56.40 2534 2138 39011 12389 91.2 1.351
-04.0 96 57.60 2602 2254 41938 12745 92.7 1.304
-02.0 98 58.80 2671 2375 45130 13080 94.0 1.259
+00.0 100 60.00 2740 2501 48612 13390 95.2 1.215
+02.0 102 61.20 2810 2630 52420 13674 96.3 1.172
+04.0 104 62.40 2881 2764 56596 13928 97.3 1.130 ! Near Maximum !
+06.0 106 63.60 2952 2902 61183 14149 98.1 1.090 ! Near Maximum !
+08.0 108 64.80 3023 3044 66241 14335 98.8 1.051 !DANGEROUS LOAD-DO NOT USE!
+10.0 110 66.00 3095 3190 71830 14483 99.3 1.013 !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 100 60.00 2842 2691 54290 13562 98.2 1.156
Data for burning rate decreased by 5% relative to nominal value:
-Ba 100 60.00 2624 2293 43456 12964 90.8 1.280

 

[Sas874runner]

Thanks for the info. I have heard mixed reviews on the powder some people have good luck with it and some people have not. But I have so much I figure I could try to make a nice load with it.

 

[jmad_81]

I use it in my STW, and have tried it in my 338/375Ruger. I want to try it in my 270 weatherby. Keep us posted on how it works for you.

It's about the only powder I can find on any given day around here. Everything else is gone in minutes.

 

[SJB358]

Those are really impressive speeds for a 140 and 150 out of a 22" barreled 270!

 

[gerry]

Those are really impressive speeds for a 140 and 150 out of a 22" barreled 270!

Ramshot shows pretty good speeds for the great 160 gr Partition too.

 

[SJB358]

Those are really impressive speeds for a 140 and 150 out of a 22" barreled 270!

Ramshot shows pretty good speeds for the great 160 gr Partition too.

Pretty excited to see what the 150 ABLR's do from my 270WSM. They should clock around 3150 or maybe a little less with RL25. That would be one awesome combo if it played out.

 

[bobnob]

Those are really impressive speeds for a 140 and 150 out of a 22" barreled 270!

Ramshot shows pretty good speeds for the great 160 gr Partition too.

Pretty excited to see what the 150 ABLR's do from my 270WSM. They should clock around 3150 or maybe a little less with RL25. That would be one awesome combo if it played out.

Yes, that new bullet will be a game changer for people who need enough speed to make kills on big game way way out there. And I suspect it will add just as much utility to the humble 270 Win as it will to the WSM and Weatherby versions.

I don't have much use of bonded bullets so I am hoping the new bullet does well enough for Nosler to bring out a BT non bonded version of it. In any case if they're accurate I would happily shoot the bonded version though I expect they will be costly by the time they land here.

 

[Sas874runner]

Ya. I'm in high hopes for this load. I'm running a 24" pipe so hopefully I can get even higher velocities out of it

 

[FOTIS]

Those are really impressive speeds for a 140 and 150 out of a 22" barreled 270!

Ramshot shows pretty good speeds for the great 160 gr Partition too.

Yup if your hunting is under 300 yards.

 

[Oldtrader3]

Getting 62-63 grains of powder into the .270 Win case would be a trick also, I think. Seeing that 58.0 grains of 4831 pretty well fills a .270 Win case.

 

[gerry]

Charlie while I haven't loaded for a 270 Win the Ramshot powders do have great loading density my guess is it would work well.

 

[DrMike]

No hill for a stepper.

 

[Sas874runner]

Spent the day at the range today. Barrel break in on the new 270 win. And load work up usong 140 AB and ramshot magnum. Results were definitely good. 62 gr@ 2953, 62.5 @ 2993, 63 @ 2995, 63.5 @ 2999, 64 @ 3010, 64.5 @ 3055 fps. Out of a 24" barreled rem 700. 2 of the loads stood out as to work with further. 63 gr and 64.5 both shot well.... 63 gr load was shot under excellent conditions. 64.5 was shot during a 20-25 mph cross wind. But all three rounds were indentical in vertical height and were about an inch apart horizontally. So I'm not sure if it is completely due to wind but being that 3 round shot in a perfectly straight line horizontally my guess is it could be. Worth reshooting under better conditions. And the picture is of the 63 grain load.

 

[bobnob]

Hmm, not much speed diff between 62.5 and 64g, then a jump. Possibly a measuring anomaly or something else?

Maybe a few more over the chrony would paint a clearer picture.

Thanks for sharing. The 140g AB is very accurate in my 270 with 59g of H4831; about 2970fps.

 

[Oldtrader3]

Not a huge difference in velocity between 63 and 64.5 gr, despite the "jump" at 64.5. I would reshoot under calmer conditions and take the better group. The 63.0 group looks pretty good and has plenty of velocity already but I still would reshoot just to verify groups.

 

[DrMike]

Hmm, not much speed diff between 62.5 and 64g, then a jump. Possibly a measuring anomaly or something else?

Maybe a few more over the chrony would paint a clearer picture.

I'd say that you are about maxed out and beginning to plateau.

 

[bobnob]

Hmm, not much speed diff between 62.5 and 64g, then a jump. Possibly a measuring anomaly or something else?

Maybe a few more over the chrony would paint a clearer picture.

I'd say that you are about maxed out and beginning to plateau.

That's what I was thinking too. I would be inclined to say that 62.5 would be the place to think about calling it a day.

My 270 has a 24 inch barrel too and it seems to start to show signs of pressures getting up there at about 3000fps with the 140g AccuBond, which incidentally is the only 140 I have ever shot out of it.

I can get to 3000fps with the 150g SST with no pressure signs but they show up with the 140g AccuBond before I get there.

2950fps is a nice place to be with that bullet but if you can get it faster, with safety and accuracy, all the better.