Of the #429421 bullet that LAH was referring to, I've got both the SWC & HP designs.
They both work exceptionally well, and although the HP is a bit lighter, it flies great with 8.5 grs of Unique at about 1000fps in a 7 1/2" SBH.
I recently bought the 250gr RCBS mould, but I haven't had time to play with it just yet. Seems it should shoot about the same as the previous Lyman bullet, based on it's configuration.
I have been using 2400 in my magnum loads for several years, with great results. Shades of Elmer.
A good solid crimp using trimmed, consistent brass keeps the flakes from appearing all over.
I just got some Li'l Gun to play with in the near future, so we'll see how it performs. I've always gravitated to H110 & W296 when it came to JHP's, but I haven't used them in many years & strictly cast has been my thing.
Scoped, I've been getting 3-4" groups consistently at 100yds, with very authoritative "slaps" when they connect with the backer.
The last shot on a deer that was made, was at approx. 125 yds., quartering to me.
The bullet was a Lyman GC 263 gr. "Thompson" HP, over 21.0grs of 2400 at 1430fps. It penetrated in front of the onside shoulder, passing through the neck muscle, turning after hitting the offside shoulder blade, and passed along between the skin layer and rib cage. The bullet struck the last rib, breaking it, and then passed down through the diaphragm, liver, intestines, and came to rest in the right ham.
Kind of reminds me of a pinball game. The bullet dropped the deer on the spot and not a sign of life when I got to her.
For hunting, I like the GCHP's the best at about 12-14BHN.
Hope this helps....
Bob