I was pondering my earlier experience with bullet performance, and got to wondering about the other end of things, with low-velocity rifle bullets. When shooting at very long ranges, or when using a subsonic cartridge like a 300 Blackout / Whisper, what heavy .30 cal bullets expand reliably at around 1000 fps? Obviously something like a 200 grain Nosler Partition will hold together, but will it mushroom at all at low velocity? They only brag about expansion down to 1800 fps on their Ballistic Tip, which only goes to 180 gr. Their “long range” Accubond recommends greater than 1300 FPS. Now, with a BC of .730 in a 210 gr Spitzer it’s still going to hurt what it hits, but if you want to maximize energy transfer, punching a neat hole isn’t the way to do it.
Any thoughts, experience, recommendations, or rumors?