RL 7 is the top choice for 40 grain Plastic Tip bullets...
Really?
Hmmm. I have an 8 pound jug o' the shyte and currently nothing to shoot it in. Hmmm.
Lyman 47th edition manual...
33.5 grains of RL 7 with a 40 grainer...
Steve's reloading pages..
http://stevespages.com/224_7_40.htmlrecommended 33 grains...
In mine.... MV is in excess of 4250....
and then there is a very nice 35 grain Nosler Lead free....the length of the average 50 grain Plastic tips..
it likes that RL 7 charge it seems also..... MV in excess of 4400 fps...
when it hits varmint things, it thinks its an M80 instead of a bullet...