Mmmmm- 5 x 3 shot groups shot on 4 targets, measuring between sub half inch and three quarter inch, I must be missing something? Was put up to show: same rifle/same day/same target/same projectile but two different powders, one of which had been referenced as unsuitable for decent velocity for 150 projectile in. 270, but is in fact fine.
Heavy for calibre projectile, driven reasonably fast for calibre, in a 6lb rifle. The OP was questioning the viability of 150 in .270
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