I just bought a new Tikka T3 and I am curious as to what you guys think about this.
I typically use Winchester Supreme factory shells with the black polymer coated bullets. My old .300 Mag. put out some tight groups with these shells. However, I shot typical copper/lead bullets out of the barrel first before trying the Winchesters. Should I also season the bore of this rifle first with a few copper bullets the same way, or would any of you just jump right to the main bullets I'll be using?
I typically use Winchester Supreme factory shells with the black polymer coated bullets. My old .300 Mag. put out some tight groups with these shells. However, I shot typical copper/lead bullets out of the barrel first before trying the Winchesters. Should I also season the bore of this rifle first with a few copper bullets the same way, or would any of you just jump right to the main bullets I'll be using?


















































