Hey guys i want to work up some loads with 150's. 150 PT, 150 Deep curl and 150 Interbond. I would like to achieve atleast 3100 fps. I have R19, R22 and IMR4350. Any good ideas of start and max loads Some QL loads would be awesome-Thanks Shooting a CZ Model 3 (MRC1999) I have not tryed 130s or 150 yet in this gun only 140's. It likes the 140 AccuBond and R19. happy shooting!
270 WSM and 150's
- Thread starter rmarshall
- Start date
That is an EASY one buddy. 65.5 grains of RL22, WW cases, CCI250's and the 150 PT. I use 66 grains of RL22 for the 150 BT. Loads clock 3130 out of my rifle with ease. Very accurate for me as well. I believe I am using 2.860 COAL for both loads as well.
BT
PT
It is the most consistently great shooting load I have. Plus, they hold their own out near and far...
BT
PT
It is the most consistently great shooting load I have. Plus, they hold their own out near and far...
DrMike
Ballistician
- Nov 8, 2006
- 36,960
- 5,173
That is some fine shooting, Scotty. I never tire of seeing those groups.
- Oct 30, 2004
- 24,073
- 2,593
They are next on my list bro!
- Oct 30, 2004
- 24,073
- 2,593
not exactly ....................... :roll: :roll: :roll: :roll: :roll:
- Nov 4, 2004
- 24,388
- 6,738
FOTIS":ip0v9cq5 said:
:mrgreen:
JD338
- Oct 30, 2004
- 24,073
- 2,593
All I can say is YOU with some others will be doing cartwheels
- Oct 30, 2004
- 24,073
- 2,593
24-48 hours bro
Mountain Goat
Handloader
- Dec 14, 2010
- 386
- 11
Retumbo and Magpro are also excellent choices for 150gr bullets in the 270WSM. 69.3gr of Retumbo and a 150gr Sierra GameKing resulted in the smallest 3-shot group I've ever shot with a factory hunting rifle, .286".
MG, I think if I were to start over with the load work, I would look at RL25 and maybe Retumbo. RL25 posts some awesome numbers in the 270 and 7WSM. I will likely mess around a little with it once I get my hands on Nosler's new 150 ALR.
Cartridge : .270 WSM
Bullet : .277, 150, Nosler PART SP 16323
Useable Case Capaci: 72.188 grain H2O = 4.687 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 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 1.0% 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
-10.0 94 62.54 2848 2701 45673 12577 99.9 1.360
-09.0 96 63.24 2879 2761 47280 12650 100.0 1.338
-08.0 97 63.93 2910 2821 48947 12715 100.0 1.317
-07.0 98 64.63 2941 2881 50676 12777 100.0 1.296
-06.0 99 65.32 2972 2942 52471 12839 100.0 1.275
-05.0 100 66.02 3003 3003 54334 12900 100.0 1.255 ! Near Maximum !
-04.0 101 66.71 3033 3064 56267 12960 100.0 1.235 ! Near Maximum !
-03.0 102 67.41 3063 3125 58278 13018 100.0 1.216 ! Near Maximum !
-02.0 103 68.10 3093 3187 60366 13076 100.0 1.197 ! Near Maximum !
-01.0 104 68.80 3123 3249 62536 13133 100.0 1.178 ! Near Maximum !
+00.0 105 69.49 3153 3312 64789 13188 100.0 1.160 !DANGEROUS LOAD-DO NOT USE!
+01.0 106 70.18 3183 3374 67133 13242 100.0 1.142 !DANGEROUS LOAD-DO NOT USE!
+02.0 107 70.88 3212 3437 69569 13296 100.0 1.124 !DANGEROUS LOAD-DO NOT USE!
+03.0 108 71.57 3242 3501 72089 13348 100.0 1.107 !DANGEROUS LOAD-DO NOT USE!
+04.0 109 72.27 3271 3565 74698 13399 100.0 1.090 !DANGEROUS LOAD-DO NOT USE!
+05.0 110 72.96 3301 3629 77405 13448 100.0 1.073 !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 69.49 3267 3555 79607 12726 100.0 1.071 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 105 69.49 2977 2953 51375 13757 99.4 1.279
Cartridge : .270 WSM
Bullet : .277, 150, Nosler PART SP 16323
Useable Case Capaci: 72.188 grain H2O = 4.687 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 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 1.0% 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
-10.0 94 62.54 2848 2701 45673 12577 99.9 1.360
-09.0 96 63.24 2879 2761 47280 12650 100.0 1.338
-08.0 97 63.93 2910 2821 48947 12715 100.0 1.317
-07.0 98 64.63 2941 2881 50676 12777 100.0 1.296
-06.0 99 65.32 2972 2942 52471 12839 100.0 1.275
-05.0 100 66.02 3003 3003 54334 12900 100.0 1.255 ! Near Maximum !
-04.0 101 66.71 3033 3064 56267 12960 100.0 1.235 ! Near Maximum !
-03.0 102 67.41 3063 3125 58278 13018 100.0 1.216 ! Near Maximum !
-02.0 103 68.10 3093 3187 60366 13076 100.0 1.197 ! Near Maximum !
-01.0 104 68.80 3123 3249 62536 13133 100.0 1.178 ! Near Maximum !
+00.0 105 69.49 3153 3312 64789 13188 100.0 1.160 !DANGEROUS LOAD-DO NOT USE!
+01.0 106 70.18 3183 3374 67133 13242 100.0 1.142 !DANGEROUS LOAD-DO NOT USE!
+02.0 107 70.88 3212 3437 69569 13296 100.0 1.124 !DANGEROUS LOAD-DO NOT USE!
+03.0 108 71.57 3242 3501 72089 13348 100.0 1.107 !DANGEROUS LOAD-DO NOT USE!
+04.0 109 72.27 3271 3565 74698 13399 100.0 1.090 !DANGEROUS LOAD-DO NOT USE!
+05.0 110 72.96 3301 3629 77405 13448 100.0 1.073 !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 69.49 3267 3555 79607 12726 100.0 1.071 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 105 69.49 2977 2953 51375 13757 99.4 1.279
Mountain Goat
Handloader
- Dec 14, 2010
- 386
- 11
SJB, those numbers look quite impressive, and matched up with the new ALR one could really find some use stretching the range out a bit. I plan on getting a hold of a few to try once available.
- Oct 30, 2004
- 24,073
- 2,593
Looks like 68,5 of RL 25 would make a killer load.
I would think so Fotis. No huge gains over RL22 though. At least between 150 BT's and PT's. Both of those will easily go 3100+ without any issues or driving the snot out of it. I do think the 150 ALR is going to really bring my 270WSM back in the rifles I grab for again!
