RE: Good loads for 223 bullets 40-50 Grs.
 

The benchmark shoots great in my savage 10 fp with the 40 and 55gr BT.I use max loads so you may want to work up.

RE: Good loads for 223 bullets 40-50 Grs.
 

for 40 gr. I use reloader 10 26.5 gr.for depending on rifle 3600 to 3700 fps.

RE: Good loads for 223 bullets 40-50 Grs.
 

MY absolute favorite and most accurate combination for my Ruger Varmiter is as follows. Federal match primer, Winchester Brass, 27.7 grains of W748, and Nosler 50 grain Ballistic Tips. This load gives me one ragged hole groups at 100 and under 1/2" at 200 When I do my part.