There are probably several powders that could work better for .380 reloading, but I'm used to the Winchester stuff (USA380VP) and like it, so I'm trying to stay close to that.
There are probably several powders that could work better for .380 reloading, but I'm used to the Winchester stuff (USA380VP) and like it, so I'm trying to stay close to that.
If I had to guess they use Win231.
That was my first thought. Then I heard "probably Win244." That got me wondering whether it's one of those two or something else entirely.
Refer to a reloading manual.
We will probably never know.
Don't ammo manufactures use non canister grade powder?
Yes. Ammo manufacturers use proprietary powders.
There are those who believe that reloading powders are the dregs that didn't pass ammo makers' specs. The reality is the opposite. Ammo makers have labs that can test each lot. If a lot is a bit out of spec, they can adjust it.
Reloaders don't have that luxury, so we have to depend on powder makers to give us their best, most consistent product. This is canister grade powder. We have to know that the density, burn rate, pressure curve, etc. of every can of AA#5 is the same as every other's.
I've asked several manufacturers which propellant they use, and they almost universally guard the information as proprietary.
Ditto the proprietary powder.
4 powders listed for the 95gr/.380 with 244 giving the highest velocity.
https://www.hodgdonreloading.com/data/pistol
Yes, but Winchester AutoComp gives high velocity at the lowest pressures with both 90 and 95 grain bullets......Quote:
Originally Posted by jsbhike