Best Caliber for Bullseye Shooting ( Indoor 25 yrds)

First topic message reminder :

Hello there !
Please forgive me if this is a lame question.  What is the best caliber to start with  ( other than .22) for a novice shooter ?  I tried .45 but cannot handle that recoil.  My local FFL has a used Colt Special Combat Government 38 Super for an attractive price.
Is that a good gun/caliber for bullseye ? 


Thank !!

The OP's original question was about using a 38 Super. I think that round has great potential for indoor matches. Might take a little work on the pistol.

I enjoy shooting my Model 52 .38 Midrange and my P240 in .32 S&W Long, the most.