This is also a Humpy Design. It is called the 306 Confederate Sabre. So called because the front of the case is the same dimension as the 30.06 Springfield and the case head is obviously a 303 British.
This design allows for 6 more grains of propellent to be added to the 303 Case.
Most wildcat cartridges require a massive outlay of cash for the loading dies.
The dies for this care are converted 30.06 dies. Just cut off .200 from bottom of 06 dies and you are ready to go.
This is a good conversion for P14 Enfield actions to make them into a long range rifle when rebarreling. I do not use P14 barrels for anything that shoots. All of them are bad and noted for barrels splitting starting at the muzzle and working towards chamber. (This info is from declassified British Ordnance Archives I have a copy of dtd WW1 time frame).
Should someone want to build one up Dave Manson has my print for the 306 Confederate Sabre.
This design allows for 6 more grains of propellent to be added to the 303 Case.
Most wildcat cartridges require a massive outlay of cash for the loading dies.
The dies for this care are converted 30.06 dies. Just cut off .200 from bottom of 06 dies and you are ready to go.
This is a good conversion for P14 Enfield actions to make them into a long range rifle when rebarreling. I do not use P14 barrels for anything that shoots. All of them are bad and noted for barrels splitting starting at the muzzle and working towards chamber. (This info is from declassified British Ordnance Archives I have a copy of dtd WW1 time frame).
Should someone want to build one up Dave Manson has my print for the 306 Confederate Sabre.