I found a Savage receiver with a Winchester Barrel on a make offer table no other details known. I checked the barrel using a bore sighter and the 25 caliber rod fits. Slugged the barrel and came up with .252 at the crown. I had a variety of unloaded cases and found a 30 Harriet case would chamber (cut down 30-30) had some 32 Special cases so checked them and decided to try necking one down, used my 25-36 die and found that at 1.955 it crimped the end of the case when loaded with no bullet. Cut it back to that length with the trimmer and it chambers fine. So is this a modified 25-35, I know they are .282 neck diameter 2.04 case, 2.53 loaded ???? A 250 Savage (250-3000) is about the right case length but was tried and did not chamber, probably the neck diameter of .286. A 25apc would be .251 the rest are .257. Any thoughts on wildcats that may have been made? Don't have any lead in the right size so will have to pick some up to try. Any thoughts apreciated.