cjmac
Silver $$ Contributor
So if acquired some 4166 and done some testing , noticed that with a 75 gr hornady bthp the case is pretty full and Max load from imr is 23 grains. It may help if I had a long drop tube .any suggestions on long drop tubes ? Seem to have got the best group at just above minimum charge and at Max charge 23 grains with no pressure . I thought that was kinda odd . May be possible to go slightly above Max charge ? This is a 1 in 7 twist barrel at 26 inches
