Yes, there is a difference in felt recoil. I shot bullseye for years using 230, 200 and 185 grain bullets. There is a difference. How much difference it makes to you is for you to decide.
It's about optimizing the projectiles performance with the length of barrel, not about which one's definitively better.But as far as the lighter/faster bullet being better, I wasn’t saying that based on being fact at least from me because I just simply don’t know. All i know is there’s a ton of people on both sides of the fence where one group says lighter/faster is better and the other group says heavier is better for maximum impact energy. I don’t even know where I stand on that. Lol.
If a closed and, I presume locked, semi door is between you and a threat, I don't know how much of a threat you'll be able to articulate later if you take a shot. I'll leave that issue to our resident legal minds.But depending on the situation, wouldn’t point blank firing through a door be a little different from firing through a door from afar? I don’t know about firing a round through the door of my pickup but firing a round through the door of this Pete would seem like a much easier feat.