Curious how 9, 40, and 45 do in penetration with say a Flat nose FMJ, and does it add any meaningful effectiveness vs roundnose FMJ.
Thinking 147 in 9, 165 in 40.....
I have not been able to find any test or info.
This fellow has done that testing while testing other bullet styles. Bookmark this link as it has a lot of good info.
https://general-cartridge.com/"At the suggestion from someone in another forum, I shot two rounds of some M882 9mm into some bare gel. This was the same blocks I used for the Underwood test. To my surprise, both rounds only penetrated about a block and a half, 24.5 and 24.75 inches. I was expecting much more."
From "UNDERWOOD 9MM & .40 S&W HARD CAST IN CLEAR BALLISTICS GEL"