I would like to hear from anyone who has a FAL Beta mag (100 round), and has actually been able to use it, without malfunction. I have a DSA FAL that was purchased new, and has never been fired. I purchased a Beta mag for it, in the appropriate size, (metric vs. inch). Said mag obviously fits the rifle, but was quite difficult to load. 4 years ago, when the mag was purchased for around $500, the fully loaded mag, when inserted into the rifle with an open bolt, would not allow the bolt to travel forward into battery. Today, after letting the mag sit fully loaded for 4 years, the mag, when inserted into the rifle with the bolt locked back, WILL feed one round, but the bolt is then nearly impossible to open manually. Yes, I have NOT actually tried to fire the rifle in the above condition, and yes, the energy created by a discharging round may overcome the "friction" exerted by the beta mag spring tension. I am just wondering if this is "normal" or not. I did speak with the Beta Mag company 4 years ago, and they said that they could "adjust" the spring tension, but I would be responsible for shipping costs, both ways, and they expected said processes to take over four weeks. Obviously, I am hesitant of paying shipping costs and waiting for over four weeks inorder to repair a mag that I bought directly from their company for just over $500. Can anyone give be some advice and/or real world experience?