I'm starting this thread in the hopes that others can chime in with their experiences and results with this majestic wad of lead.
So for those who don't know, these puppies drop at a hair over 0.730" (per calipers) and 630 grains +/- with range scrap plus tin which comes to 1.44 ounces. I found that I got best results aggressively pouring a lot of lead, even after it seemed full. Otherwise I observed either a small void at the top of the hollow base, or the top of the pellet would not completely form.
Whether it was necessary or not, I powdercoated my slugs before use.
*WARNING - MY LOAD DATA IS A SCIENTIFIC WILD-AZZED GUESS AND MAY NOT BE SAFE* Feel free to criticize.
I am using once fired new versions of Federal Top Gun hulls and Winchester primers. My wad columns consist of a BPI BPGS gas seal (as the x12x were out of stock), 1 to 1 ½ 10mm waxed fiber cards, 1 0.135 Nitro card, then the slug finished with a fold crimp.
These were fired from a 20" (I think) rifled Remington 870. Chronograph was set up at 15 feet (as my first test at 6-9 feet blew off the sun shades and gave me 1500+fps readings). The following results were on a nice hot 92F windy humid day.
30.0 grains HS-6
993 fps
1122 fps
1002 fps
1104 fps
At 50 yards, load produced a 10" vertical string. No guarantee it wasn't a flinchy me.
23.0 grains Herco
1074 fps
1067 fps
1088 fps
1058 fps
1075 fps
At 50 yards, similar 10" vertical string as HS-6.
30.0 grains Long Shot
1244 fps
1213 fps
1155 fps
1231 fps
1150 fps
One went 6" high, and four others kept to around 2".
I recovered some slugs from the berm. In wet sand, they certainly look vicious.
I also recovered an interesting blown gas seal.