Talk:M1A1 Thompson/@comment-38751998-20190807130243/@comment-36958464-20191210141310

acTUally...

both .45 ACP and 5.56 do more injury to foes, as 5.56 and .45 ACP have a higher chance of tumbling in midair or fragmenting on impact, causing pieces to hit the target's organs.

7.62 has a higher chance of just going through the target.

There is your answer.