Thinking on a new rifle

[bruce moulds]

mike t,
no wonder you prefer the 45.
with its 16"twist it is far superior for long range to the 40 with a 16" twist.
to be apples and apples, i.e. having a similar stability factor, the 40 needed a 13" twist.
also, relative drag due to nose configuration needs to be taken into account.
84 gns of 1.5 would have moved that 440 gn bullet pretty well.
was it a pp bullet?
sounds like both cartridges are using pp.
keep safe,
bruce.