MLAIC is great. And there are a lot of disciplines in which to compete.
I have competed in:
"Mariete" (for replica revolvers at 25 meters, there is a separate event for originals the discipline is called Colt and you can compete in both if you have both originals and replicas)
"Donald Malson" (for revolver at 50 meters there are separate events an for originals and for replicas. You will have to use the same revolver you used either in "Mariete" or in "Colt")
"Kuchenreuter" (for percussion single shot pistols with rifled barrels. There is an original and a replica event)
"Comminazo" (for flintlock pistols smoothbore only at 25 meters, again 2 separate events available)
"Vetterli" (for percussion rifles at 50 meters it has to be a front loader Sharps type rifles are not accepted. Again originals and replicas events available)
I started competing with a Uberti, Pedersoli is better and I don't think thy use an Uberti frame, the Uberti grip is smaller.
Comparison
The Rogers & Spencers from Feinwerkbau are also very good.
If I was in the States I would try to get originals. You can find Rogers & Spencers in very good condition (they dominate the "Colt" match) because they were never issued.