Try loading it up a bit. My stock 46AX with a stock muffler will turn the 9.5x6 at 16,800. You need to get the motor into the 15k-16k on the ground range to take advantage of the Jett muffler.

I'd try the 10x7, or 10x8. They seemed to work the best. The Vess 10x8 fell right in between them and was the best prop I found when I was working up a Rossi 45.

Good luck,


Chri