I must apologize in advance because I'm going to pick your review apart. Exactly what testing was done to come to these conclusions??? How many rounds were fired through how many guns? Did you base this on two boxes of Federal and one box of Remington in one rifle? Do you really think it's a fair comparison to include Eley and CCI Mini-Mags? It is not. By the brick, Mini-Mags cost at least 50% more than the bulk loads listed. I can buy Federal for $16.50/525rds if I buy it by the case. Mini-Mags are double that. I won't even get into how silly it is to compare Eley match to bulk ammo. Who cares how shiny the brass is???
I would counter with:
Federal bulk - This is a good load. It functions well in most guns and is good for plinking. It tends to be quite accurate for a bulk load. It is, however, a very poor game load. It has only a dimple on its nose, yet is advertised as a hollowpoint. On game it acts like a solid. It also runs well below advertised velocity and does not cycle some semi-autos. My Ciener conversion will not run on it. My Ruger 22/45RP does not care for it either. I can get the best price on it at $16.50/525rds when I buy a case so I keep some on hand for blasting. This is Federal 745, not the stuff from Walmart.
Remington GB bulk - Folks like to poop on it but I always feel the urge to come to its defense. It is an excellent load. It runs close to advertised velocity. It has a real hollowpoint and is a great game load. It even expands at pistol velocities. I have taken truckloads of game and varmints with them. It is acceptably reliable, no more or less than any other bulk load. A would estimate a failure rate of less than 1%. It cycles all my semi-autos, the Ciener runs 100% on them. Accuracy is typicallly very good for a bulk .22LR load.
CCI Mini-Mags - Excellent load, I don't ever remember having a malfunction with CCI. It runs close to advertised velocity, cycles semi-autos and is a great game load. Only downfall is cost. As stated, it is 50% more than most other bulk loads.
All .22LR is dirty, especially bulk. I find Remington to be no more or less than any other. I'm about to have to break down and clean my #1 10/22. It thrives on Remington GB's and feeds on nothing else. This is one of my most-used rifles. Good for 1000rds last week alone. Probably another 500rds this week. It has been three years and probably a good 20,000rds since its last cleaning.
All this based on 30yrs worth of shooting. At a rate of 2000-3000rds a month of Remington bulk over the last five years. Reliability and accuracy testing in nearly three dozen varying .22LR firearms. Thousands of dead critters and tens upon tens of thousands of rounds sent downrange.
Not one rifle and three boxes. What folks fail to realize is that every .22LR is a law unto itself. There is no way to predict how any gun will shoot with any given load. The proof is in the shooting. One rifle that does not like one load proves nothing but the very obvious. That one rifle does not like one load. I tried a box of Winchester Xpert and it did not do well in several guns. I just didn't going spewing forth all over the internet that the ammo was garbage. This is what happens when folks get all their shooting education from the internet. Books are good, read a few.