im looking for information on a Diana 880 model cast iron stove.
Daisy has be making the model 880 sense 1972. Your best bet is to contact Daisy directly. They offer a free service to give you more information about your old Daisy. See the link below.
Colt
10-200 usd
2002
880
300 USD or so
Both rifles are about the same in price. The 880 is about $5 more than the 764. The 880 has a 50 round capacity. The 764 has an 18 round capacity. The 880 has a rifled barrel, the 764 has a smooth bore barrel. The 880 is rated at 750 FPS, the 764 is rated at 625 FPS. If it were me I would select the 880 over the 764
Half of 880= 880/2= 440
60% of 880= 60% * 880= 0.6 * 880= 528
45% of 880 = 45% * 880 = 0.45 * 880 = 396
880