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Well I finally got around to checking the my Trailboss loads at 100 metres.
I forgot my rear bag so was just off bipod and gun bag and jumper. The 4th was shoot was all me. I paused after the 3rd shoot and wasn't in my usual comfortable position.
Squares are 1 inch. Shooting nearly 3inchs low(aiming for top black dot)below my normal 223 loads which are doing 2900fps. My Trailboss loads doing between 1940-1970fps.
Thinking about trying some light Vmax 40 or 45gr or maybe even some Barnes varmint gernades in 36gr. If the don't work in my 1in12 twist 223 I can try them my 1in14 twist 222 mag.