Re: Light 270 rounds
I have used Speer 100 gr HP with 57 to 58 gr of AR2209, Winchester primer in a Ruger M77 22" to get 1/2" group @ 100 yds - velocity est 3200 fps. These have worked well on goats out to 300 yds
I also use 130 gr Sierra spitzer with 51.5 - 52.0 gr AR2209, vel est 2800 fps to get 3/4" group @ 100 yds also good for goats out to 300 yds
I generally like to keep the charge lower when out in the field as I have had instances of high pressure shooting on 40 C degree days with ammo left in the sun, I also like to take note on how many times I reload the brass and toss after 5 reloads.