I changed out the barrel on my savage rifle from a 270 to 308. I noticed that the primers were pushed in and the accuracy is off every 3 rounds i shoot one is about 2-3 inches to the right. Could this be because i need to move the head spacing or something else. I had been shooting some 308 win and noticed that the bolt closes hard. I shoot 762 x 51 and have no problem it closes nice and easy. I did a full resize on all the brass but i can't figure it out i had been shooting 308 win cases and they worked fine only that 3rd round flyer. Please help!