Seems to me that with the 148gr wadcutter, my load was always 2.5 gr Bullseye. There was a 700X load that worked ok also but don't remember it right off. Got 8# of pistol powder #6 from a friend that died and have been using it with 150gr semi wad cutters. #6 was discontinued years ago.
148gr wadcutters and Bullseye go together like peaches and cream.
Jim Zumbo, Craig Boddington, Ron Spomer and Wayne Van Zwoll are all solid contributers to the modern hunting literature. Through their gifts (both hunting and writing) they make us better hunters. Whether it is letting us learn from their mistakes or by teaching us new techniques,they help us harvest more game. But I suggest looking to the oldies, the fathers of the outdoor writing craft, to learn tricks that you might have not used.
I chose to shoot the 270 winchester because I grew up...