FWIW, my 41 likes to eat the higher velocity ammunition. I regularly feed it Federal Champions 525 Bulk Pack ammo during routine practice shooting, and I get the occasional stovepipe jam, failure-to-pick-up a new round from the magazine, and FTE. I can never count on having a full magazine's worth of functionality with this ammo, hence I do not use it for anything of a competitive, time-sensitive nature (i.e. timed/rapid fire timing - where any problem can knock you out of the running).
When I load CCI Velocitor ammunition, all of the above problems go away. As an additional benefit, the extra 'oomph' of the CCI ammo knocks down several metal silhouette targets that the Federals merely wobble. An even greater benefit is the grouping factor. The CCI ammo groups shrink by 50% over the Federal groups for any given distance.
So why don't I shoot CCI all the time? Cost factor! The CCI ammo is 3 times the price of Federal ammo.
lakers1138