this particular item is a .22 cal. pellet gun
It's rated at 660 FPS
At present, Daisy air gun co distributes and services Winchester air rifles. From 1969 to 1975 Winchester imported eight different models from Meyer & Grammelspacher in Germany. Yours is one of them. It's a Diana model 27.
A Winchester Model 427 pellet gun in 22 cal shoots at speeds of between 400 and 600 feet per second. The actual velocity varies based on the number of pumps used and the distance to the target.
Any good qualified gunsmith should be able to repair your winchester,as long as he could obtain the parts required to repair your firearm.
I am not familiar with this particular model (427) but I am familiar with Benjamin air rifle. If your problem is that there is on Scope rail to mount your scope then I know how to fix it. Crosman airguns owns Benjamin air guns. Crosman offers a special Benjamin barrel clamp that lets you mount a scope to it. See the link below
Several companies made rifles for Hy-Score. The model 809 is also a Winchester 427, a Beeman 200 and a Diana 35. Price values are all over the place on this Air-rifle. It all depends on whose name is on the actual rifle. I did find this on Diana (whom I think actually made the rifle) Diana model 35 mfg 1953-64. 177 or 22 cal. 19-inch barrel. 8 lbs. Top value in Perfect condition. $225 to $275 90% $150 to $175 60% $75 to $90 Model 35 (mfg 1965 to 87) 100% $120 to $150 90% $80 to $105 60% $40 to $65 I highly suggest that you get a hold of the book "Bluebook of Airguns 7th edition" and go to page 491 and start reading you have a lot of work to do to determine this value.
427%:= 427/100 in fraction
The Ford 427 engine was used in a great deal of models of cars. In the 1960s when the engine was first produced, it could be ordered in any model of car that Ford sold.
The positive integer factors of 427 are: 1, 7, 61, 427
The most popular Corvette is the '67 Corvette. This Corvette is known for its 427/435hp.
213.5