88 TMK Loading Thread

[kopmantrey]

I shot 4 88tmk loads from a 20" 22 creed rechambered tikka 22-250. This barrel seems to show pressure signs sooner than others I've been around. I copied and pasted my notes below. All loads need backed off slightly for this barrel.

40.5 n160 heavy bolt 3113avg (left 4 shots)
43gn h1000 slightly heavy bolt 3078 avg
36gn h4350 slightly heavy bolt 2947 avg
42.5gn magpro slightly heavy bolt 2933 avg

 

[43.6N]

What’s a 223 WY?

223 Wylde chamber.