Short Buffer Tube by XLR Industries

Great looking stock, significant improvement in accuracy from a wooden stock. One big problem that I still can't figure out. Is not feeding correctly with any of the 5 xlr magazines I purchased. The bolt seems to be just a couple milimeters off where it doesn't clear the round perfectly. Tried a couple deferent things but yet haven't found a way to make the riffle feed correctly, without double taping the bolt. By that I mean I have to push the bolt forward once to move the round alittle forward, then bring it back and push it in the chamber.