Jorah, I don't think you'd be laughed off with the 30-30, just get good with it. I was shooting a 56 year old pistol form an Uncle Mikes nylon holster at three gun yesterday and didn't get laughed off. I am seriously considering shooting a match with my M-44 carbine. Just get good speed reloading and loading on the move. One course was 40rd and the other 23, so you will be a busy reloader. Can you direct load that things chamber? Blackwater isn't too far away, hopefully they're going to try another 3-gun this fall. You should make plans for it.