At, say, ten yards would this round hit about as hard as a .45? It's a 220 grain bullet going about the same speed, but it is only .30 in diameter. But because it is a long bullet I think it might tumble when entering flesh. What do you think?
Depends on what you are shooting. Small thin skin animals, probably not. A deer sized animal is quetionable, It mostly depends on what the 30 cal bullet hits and how it tumbles. The 45 has the advantage of energy tranfer on a regular basis regardless of what it hits using a premium bullet design. I could see the 30 cal doing more damage on say a deer quartering away shot, giving it ample time to penetrate and tumble and brake bone and do what it does best. With speed being about the same in both. Close in on say a defensive situation on a person, I would take the 45 with premium bullets. The Whisper would be a better choice for a longer shot with less noise for the most part. Just a thought.