So after 5 weeks of having my LMG. I finally got to try it out. I'm happy to report my 99 ran flawlessly. The only hiccups I had were several pierced primers. One case head separation that was self removed when the next cartridge ran up inside the stuck case in the chamber. When the gun stopped, retracting the charging handle pulled everything out and the gun was again operational. I shot over 300 rounds before the rain came. My load of 45.0 grains of IMR 4895 worked very well and was more than enough to keep the 99 humming. My son captured some video on his I phone. If I can post I will later. I learned one thing during my live fire. I can appreciate what our soldiers who faced the weapons went through. They were very brave young men. The 99 LMG is a first rate weapon built like a tank. I would not want to face one in any battle situation. It's obsolete by modern standards but it reamains a classic LMG of WWII vintage.