45 Super conversion is a tuning process. I did the first four and use 45 Super brass. If your brass is being launched into the next zip code... you need to stop and do a little more tuning.
Yes.
I have a Ruger SR1911 I've converted.
Changes are:
30# mainspring
Xtra power Firing pin spring
20# Recoil spring
EGW Flat Firing pin stop.
I also added a Wilson Multi Comp. It replaces the barrel bushing but is not as efficient as a barrel mounted comp. My main objective was more slide mass. Before this addition, ejection was 8 to 10 feet, now it is about 6 feet, which tells me slide velocity is in the typical 45 ACP range. .45 ACP dribbles out.
The load is a Montana Bullet Works 250 grain LBT LFN GC at 1050 fps.
I also had the barrel done where I could lengthen OAL without jamming bullets into the rifling.
