I just received 2 new Benchmark MTU barrels from Straight Jacket Armory. First thing I noticed when mounting them in my MPA chassis is that the barrel very close to the first set of ribs in the barrel channel. Once the action screws are torqued, I can just slip a piece of paper between the barrel and chassis. That is about .003-.005 clearance.
I can't imagine that these barrels will flex much. However, what is the minimum amount of clearance I should have before the barrel touches the chassis and affects the harmonics?
I can't imagine that these barrels will flex much. However, what is the minimum amount of clearance I should have before the barrel touches the chassis and affects the harmonics?