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I ordered some 150 Gr. A-Frames and I am working a load for my son's 270 WSM. I was wondering what Powder, Brass , and Primer Swift used? Thanks, | ||
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One of Us |
I have one. Here is the pop for the 270 WSM and the 150 gr. A-Frame bullet. Case: Winchester Primer: WLRM Test Barrel: Wiseman Barrel Length: 24" Barrel Twist: 1-10" Powders they list: H-1000, H-4350, H-4831, RL-19, RL-22, RL-25, IMR-4350, IMR-4831, IMR-7828. Let me know if you want the starting and maximum loads listed for a specific powder. They state that IMR-4831 had the lowest standard deviation on velocity. Maximum loads yielded velocities ranging from a low of 2985 fps to a high of 3075 fps. Hope this helps. | |||
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one of us |
Thanks, I will order a manual with my next order to Midway. Do they show a most accurate? If so I would like the max of it, the H-1000, RL25, and IMR-4350. Thoose are my favorite powders. Thanks again, Mike | |||
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One of Us |
No, they don't list a most accurate. Max loads: 67.0 gr. H-1000 2996 fps 67.5 gr. RL-25 3075 fps 57.5 gr. IMR-4350 2989 fps I really like their manual. Hope this helps in your loading development. | |||
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one of us |
Thanks a lot. Mike | |||
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one of us |
Tradewinds, Just a note on my experiences using the data from the Swift manual-I’ve found their loads overall to be about 5-8% lighter than you will find in most of the other manuals. While I have yet to actually load any Swift bullets in any of my cartridges and their composition may dictate these lighter charges, it is just something to keep in mind. I also noted in the new Speer manual #14 that they list specific load data for the Trophy Bonder Bear Claw/Sledgehammer line that is a bit lighter than the standard Speer bullets. Just FYI, as always start low and work up in your particular rifle. Good luck. Paul "Diligentia - Vis - Celeritas" NRA Benefactor Member Member DRSS | |||
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One of Us |
This is certainly true but may be due to the hardness of these bullets. Ballistic Tips they are not. Exceed these loads cautiously. LWD | |||
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