What kind of "competitions?"
You mention a bullseye league.
NRA Conventional Pistol (bullseye) calls for a smallbore (.22) a centerfire (.32 or larger) and a bigbore (.45 ACP, period.) Many people use only two guns for the three events, shooting a .45 in centerfire and bigbore. Saves money, does 2/3 of the shooting with the same trigger, grip, and sights.
The point of handloading, apart from economy, is to tailor your ammunition to the job. A .45 Midrange load with a 185 or 200 grain semiwadcutter at 700-750 fps is not a hard kicker.