Ngneer2111 wrote:So now the big question..
I've got Aliant Unique powder. I'm having trouble finding load data for the 100 grain plated bullets for both .380auto and 9mm.
Any suggestions on where to look or load sizes???
Getting excited!!!! Almost ready for my first loads!!!
Oftentimes you never find data for a specific bullet. You'll have to figure the closest match and enter the grey area.
Usually a lighter bullet gets more powder, so if you find data for a 115gr cast or plated bullet, use the middle charge as a starting point for your 100 grainer. Seat the bullet incrementally until there's no interference when you do the drop-in chamber check (you'll need to take the flare out for chamber testing). Seat about .010" beyond interference and record this as your COL for this bullet combination.
Go test fire a few to see if they function properly. Repeat until you get a working load.
Sometimes obscure bullets require a little fudging. Measure other similar bullets and seat to the same base depth that the known bullet seats to. If the COL functions, you'll be pretty close.
If this sounds too much like guesswork, buy bullets that are listed in your load manuals and stick to published data.