Loads for 270 WSM with 150G Partition

Pineman

Beginner
Dec 20, 2021
55
56
Getting my gun back soon from the gunsmith and want to work up some loads with 150G Partitions and Accubonds. I've got some for 130 and 140 g but haven't tried 150G yet. I have a pretty good assortment of powders and primers so any recommendations would be appreciated.
 
H-1000 has been a go to powder for me with the 6.5 PRC, 6.5 WSM, 6.5 SAUM, 7 WSM, and 7mm SAUM.
I imagine it will work good for the 270 WSM.
 
Cartridge : .270 WSM
Bullet : .277, 150, Nosler PART SP 16323
Useable Case Capaci: 72.180 grain H2O = 4.687 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length : 26.0 inch = 660.4 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 63817 psi, or 440 MPa
or a maximum loading ratio or filling of 115 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
ADI AR 2218 111.2 78.8 5.11 3296 98.2 63817 14693 1.196 !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 76 *C 104.2 74.6 4.84 3288 100.0 63817 13162 1.210 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N570 *C 107.6 75.5 4.89 3286 98.0 63817 14419 1.216 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-33 *C 109.4 78.9 5.11 3271 98.3 63817 14229 1.217 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-50 *C 114.2 82.2 5.33 3268 97.9 63817 14518 1.239 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H870 114.1 78.4 5.08 3262 99.2 63817 13891 1.220 !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 80 *C 106.6 77.0 4.99 3257 99.6 63817 13747 1.226 !DANGEROUS LOAD-DO NOT USE!
Norma 217 *C 114.2 74.8 4.85 3253 100.0 63817 12975 1.230 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2225 111.4 74.5 4.83 3246 100.0 63817 12597 1.211 !DANGEROUS LOAD-DO NOT USE!
Hodgdon Retumbo 111.4 74.5 4.83 3246 100.0 63817 12597 1.211 !DANGEROUS LOAD-DO NOT USE!
IMR 8133 Enduron *C*T 114.5 74.6 4.83 3239 99.9 63817 13233 1.226 !DANGEROUS LOAD-DO NOT USE!
Accurate LRT 111.6 79.0 5.12 3218 93.1 63817 13902 1.207 !DANGEROUS LOAD-DO NOT USE!
Bofors RP30 106.7 71.0 4.60 3214 100.0 63817 12895 1.232 !DANGEROUS LOAD-DO NOT USE!
Norma MRP 2 *C 106.7 71.0 4.60 3214 100.0 63817 12895 1.232 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-26 *C 95.6 68.4 4.43 3212 100.0 63817 12248 1.237 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 517 101.5 72.1 4.67 3212 100.0 63817 12659 1.216 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N560 *C 98.7 67.1 4.35 3212 99.7 63817 12962 1.221 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 12 101.3 71.9 4.66 3211 100.0 63817 12630 1.217 !DANGEROUS LOAD-DO NOT USE!
Accurate MAGPRO 98.9 70.0 4.53 3205 99.0 63817 13116 1.229 !DANGEROUS LOAD-DO NOT USE!
Norma MRP *C 96.8 67.2 4.36 3203 100.0 63817 12424 1.229 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 SSC 97.6 66.7 4.32 3201 99.8 63817 12526 1.211 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 103.1 66.7 4.32 3201 99.8 63817 12526 1.211 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-25 *C 104.6 69.2 4.48 3200 100.0 63817 11947 1.220 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2213 98.7 66.4 4.30 3189 99.8 63817 12448 1.208 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N565 *C 103.2 70.5 4.57 3189 99.7 63817 12792 1.242 !DANGEROUS LOAD-DO NOT USE!
ADI AP 2214 102.5 70.8 4.59 3188 99.9 63817 12246 1.206 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H1000 *T 107.8 71.0 4.60 3185 99.9 63817 12211 1.206 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2217 107.8 71.0 4.60 3185 99.9 63817 12211 1.206 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA15 *C 99.0 66.6 4.31 3181 100.0 63817 12344 1.228 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-22 *C 99.0 66.6 4.31 3181 100.0 63817 12344 1.228 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5/NP ~approximation 99.0 66.6 4.31 3181 100.0 63817 12344 1.228 !DANGEROUS LOAD-DO NOT USE!
Winchester WXR 101.6 66.9 4.33 3180 100.0 63817 12370 1.228 !DANGEROUS LOAD-DO NOT USE!
Bofors RP15 101.6 66.9 4.33 3180 100.0 63817 12370 1.228 !DANGEROUS LOAD-DO NOT USE!
Bofors 12,7mmRA NC1214 Lot20115087 114.1 80.3 5.20 3175 90.8 63817 13872 1.257 !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 70 *C 90.6 64.2 4.16 3167 100.0 63817 11576 1.220 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori 24N41 *C 109.9 77.9 5.05 3163 92.8 63817 13094 1.212 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5 NT *C ~approximation 102.4 69.5 4.50 3160 98.9 63817 12422 1.211 !DANGEROUS LOAD-DO NOT USE!
Ramshot Magnum 98.7 71.5 4.64 3157 100.0 63817 11733 1.226 !DANGEROUS LOAD-DO NOT USE!
 
I sent you a PM, but anything from RL17 on up to Retumbo will work. Not sure what you have on the shelf, but it isn't very finicky and speed came pretty quick with anything 22 or slower.
 
You shouldn’t have trouble finding a suitable powder for your load. The first 23 powders on Jim’s Quickload are only separated by 96 fps. Man that’s impressive in and of itself.
 
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