The 6UM

what ace barrel contour should I go with on a tikka 20 barrel running suppressed? Tikka sporter, or sp1? Is there a big difference?
What is everyone else running?
 
I went with a spiral fluted #3. Thought about going sporter with a flared muzzle for 5/8-24 threads but liked the look of the fluted #3 better and I don’t mind the added weight for this gun.
 
You don’t have to run 5/8x24 to run a suppressor
I've talked to ACE about running the taperless contours started by preferred. The 750 contour is very easy to get sub 3#, without fluting. Even lighter fluted and accepts 5/8x24. I feel it's a good compromise. If 9/16x24 is your thread desire, then a Sp1 will work. Ace has nothing on their contour chart about a Tikka contour.
 
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