I have a new Model 12 LRP in 6.5 Creedmoor. I have shot 20 rounds of 120 grain Hornady Amax through it and then I reloaded them with 140 grain Amax to a COAL of 2.82. They will not let my bolt close. I had to press them down to 2.78 to get it to close clean. I was trying to emulate the factory round but i cant go to 2.82. What would you do? Reload to my guns length or adjust the headspace? The 120's are 2.715 so they work great, but it doesnt have the BC of the 140. Should I send it back? Carry to a gunsmith?