from everything i have read, the green belts from IMA are much easier to load than the white ones, but i dont know, i got 30 belts from them, when these first hit the market and all of them are white and are a royal PITA to load.
the only way i find to make them easy to load is to pre stretch the belt a little bit, and even then its a real PITA.
after they have sat with ammo in them for a couple days, and after you shoot them one time, they are easy to load, but brand new, they are super tight with .308
before i tried the water and 25 pound weight trick, i would stuff each individual pocket individually. Id just lift the needle bar on the loader, and load it one round at a time.
after they have sat with rounds in the pockets for a few days and you shoot them once, it becomes much easier to load, but that first time was a PITA with my white belts
if you are trying to stuff any belt with your fingers, man, i feel sorry for your poor blistered hands!! I will bet money on it that you will be investing in SOME type of belt loader in short order - good luck, been there