I just tested this out last month using 4.4 gr universal and CCI 500 and Federal Small magnum. These were chrono'd when it was 8 degrees outside and using my Glock 34 and 124 gr rn winchester bullet and WIN cases.
Avg vel using the federal magnum was 1097 fps
Std CCI was about 1078
I did not see much difference and this is not a recommendation.