77gr Sierra TMK's in 22br

[andybrock]

I've just switched over from 75gr a-max to 77gr TMK's in my 22br and I was wondering what kind of velocity anyone was getting with the 77's in a 22br?

Using 30.9gr of RS52 powder, 25" 1:8 barrel, BR2 primers I'm getting 3250fps with no pressure signs at all.

 

[Baddog0302]

Check the "Builtin Board" located in the top header. There is a section on the 22BR. Not sure what your RS52 powder compares to. These is a link to Sierra's 22 BR data. For some reason they went from the 69 SMK to the 80 SMK, skipping the 77 SMK
If nothing else call Sierra

 

[andybrock]

Check the "Builtin Board" located in the top header. There is a section on the 22BR. Not sure what your RS52 powder compares to. These is a link to Sierra's 22 BR data. For some reason they went from the 69 SMK to the 80 SMK, skipping the 77 SMK
If nothing else call Sierra

Thank you for the reply Baddog but is was the new Sierra Tipped Match King bullet I was interested in, I think it's a different animal to the standard match King bullet.

Thanks Andy