Howdy & Welcome,
I'm a fan of the "73 Winchester rifles for cowboy action shooting. My opinion is you just saved yourself from having to go thru two learning processes. One just shooting a stock "73 and then the 2nd to learn to shoot a modified rifle. Might want to be cautious with the trigger until your sure of how much pressure it takes to drop the hammer. Hope to see ya at he July Outlaws match. Keep us posted on your progress.
Hasta Luego, Keystone
P.S. Come on out on the next setup day and give it a try on some cowboy targets.