My Mrod shoots H and N Terminators extremely well for a hunting pellet. I use JSB domed too. The problem I was having was dry fires with the Terminators. The domed pellets indexed well but the Terminators would have some fail to index moments. I placed the magazine over an empty pill bottle and pushed the pellets through with small hex wrench. The domed worked smoothly but the pointed Terminators hung up as the magazine would not always rotate. I figured it was the point catching something so I disassembled the mag and as the photo shows the small circular indentations were the problem. I am only guessing but it is probably from an injection molding process as you can see 3 spots on the upper section as well. The domed pellets rode on the groove but the points of the Terminators went down into the groove and caught the rough edges of the indentations. A few minutes on each one and the Terminators index perfectly. If you shoot domed pellets only this isn't an issue but I would think that others who shoot pointed pellets may have experienced. I apologize for the poor pic but this is the best out of 7 tries. 
