Camp Cook,
HVA did not chamber sporting M/96 in 30-06. Both the M/96 and the 1640 are small ring Mauser, the later being a compound between the M/96 and the M/98.
Talley do not list the 1640, but rather the M/96 and while bot the M/96 and 1640 share the same bases profile and bolt pattern, they are different in lenght, so a one piece base for the M/96 won't fit the 1640 and vice versa. There will be no problem in using a two pieces set, though.
HVA did not chamber sporting M/96 in 30-06. Both the M/96 and the 1640 are small ring Mauser, the later being a compound between the M/96 and the M/98.
Talley do not list the 1640, but rather the M/96 and while bot the M/96 and 1640 share the same bases profile and bolt pattern, they are different in lenght, so a one piece base for the M/96 won't fit the 1640 and vice versa. There will be no problem in using a two pieces set, though.