There are only two bullet weights available as reloading components, 170gr from Speer and Hornady and the 165gr FTX gummy tips from Hornady also. The same two weights, 165gr & 170gr are available as factory loads.
Only way to get even close to 150gr is to cast your own and then you'll need a custom mold made up. The .32
Winchester Special was offered in the Win Model 1894 in 1902. It was initially offered with a 165gr bullet that was also used in the .32-40. Using that .32-40 bullet, it was quite the deer slayer. Ruined a lot of meat also and
the old timers complained to Winchester so loudly that Winchester offered a 165gr full patch bullet. In the 20's, the bullet weight was increased to 170gr and has been that weight ever since until the introduction of the Hornady 165gr FTX gummie tip in .32 Special. The Hornady Leverevolution power might be a good powder to try along with their 165gr FTX bullet. Use 30-30 load data knowing your maximum charge will be about 3 to 4 grains heavier than the 30-30 maximum load. I have four .32 Winchester Specials and have sent quite a few rounds down range and at deer. All of the deer taken by me with the .32 Special have all been one shot kills.
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