Everywhere you turn you hear if you want 9mm subsonic, you need t use 147gr bullets. Call Mach1 1125fps. There's a lot of recipes for projectiles as light as 115gr showing velocities under 1000fps. I've spent the best part of the last 2 hours looking for 147gr projectile options and load data for the various projectiles I've found. I like the Berry's offering because they're cheaper and have great reviews.
I still can't get over the fact that you are always told not to deviate from the load data. So how the hell are all these bullet companies sold out of bullets when I can't find any load data for them? It's crazy. Based on what I'm running now (Remington 115gr FMJ, 4.2gr titegroup) I should be in the 1100 fps range already. There's a lot of information printed about sectional density and whatnot, so why don't bullet manufacturer's publish this information? All it means for the rest of us is give it best guess where the safe level is, and if your gun survives, start looking for pressure signs.
Here's the rub. Titegroup is a pretty narrow window anyway, and 147gr lead has a range of 2.5 to 2.8 grains. My powder measure throws +.1/-.1 range. Not much margin there. Along those lines, the 2.8gr maximum (which they say never exceed) produces a C.U.P. of 30,300. Further down the table, 700x has a C.U.P. of 32,200. I know burn rate and several other factors play in, but almost 2000 difference just seems odd.
I still can't get over the fact that you are always told not to deviate from the load data. So how the hell are all these bullet companies sold out of bullets when I can't find any load data for them? It's crazy. Based on what I'm running now (Remington 115gr FMJ, 4.2gr titegroup) I should be in the 1100 fps range already. There's a lot of information printed about sectional density and whatnot, so why don't bullet manufacturer's publish this information? All it means for the rest of us is give it best guess where the safe level is, and if your gun survives, start looking for pressure signs.
Here's the rub. Titegroup is a pretty narrow window anyway, and 147gr lead has a range of 2.5 to 2.8 grains. My powder measure throws +.1/-.1 range. Not much margin there. Along those lines, the 2.8gr maximum (which they say never exceed) produces a C.U.P. of 30,300. Further down the table, 700x has a C.U.P. of 32,200. I know burn rate and several other factors play in, but almost 2000 difference just seems odd.