hobbler
05-19-2013, 05:25 PM
http://i791.photobucket.com/albums/yy192/SNARGLEFLERK/69AdjustablePP_zps0b6e178a.jpg (http://s791.photobucket.com/user/SNARGLEFLERK/media/69AdjustablePP_zps0b6e178a.jpg.html)
Been working off and on with this adjustable length hollow base paper patch design in an Armisport two band Fremont. The Fremont has a 66" twist. So after checking calcs on what the 66" twist might be good for, the mold was set for a bearing length of one bullet diameter, that being quite a bit shorter than what the maximum might be.
http://i791.photobucket.com/albums/yy192/SNARGLEFLERK/BigChiefBuffaloNickel_zps5fdd3962.jpg (http://s791.photobucket.com/user/SNARGLEFLERK/media/BigChiefBuffaloNickel_zps5fdd3962.jpg.html)
And that length barely had a little yaw at 50 grains of Jacks Battle. No yaw at 60 grains but started to overpower the skirt. Reckon I will try it a little shorter.
Been working off and on with this adjustable length hollow base paper patch design in an Armisport two band Fremont. The Fremont has a 66" twist. So after checking calcs on what the 66" twist might be good for, the mold was set for a bearing length of one bullet diameter, that being quite a bit shorter than what the maximum might be.
http://i791.photobucket.com/albums/yy192/SNARGLEFLERK/BigChiefBuffaloNickel_zps5fdd3962.jpg (http://s791.photobucket.com/user/SNARGLEFLERK/media/BigChiefBuffaloNickel_zps5fdd3962.jpg.html)
And that length barely had a little yaw at 50 grains of Jacks Battle. No yaw at 60 grains but started to overpower the skirt. Reckon I will try it a little shorter.