Originally Posted by OttoG
Being forced to change to lead free. Currently shoot a 120gr NBT under N140 in a 20” barrel for 2,850fps

I have a choice of 110gr and 120gr TTSX and have N540, N550 and RL17.

Use is big deer out to 300yds and I’m a fan of expansion and would prefer not to have to shoot shoulders

I can get hold of big game if required



https://www.24hourcampfire.com/ubbt.../10512756/Optimal_MV_for_120_gr_TTSX_out

49.5 grains BG got me 3050 fps and great accuracy. Winchester Large Rifle Magnum primer. Low ES, around 20. Tikka stainless, so 22 1/2” barrel. Much more got me ejector marks.

51.5 grains BG with 120 BT got me 3126 fps and even better accuracy. Same primer.

2.805” COAL for both.




P

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