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|Place of origin||USA|
|Variants||.25-35 Ackley Improved, 6.5×52mmR|
|Parent case||.30-30 Winchester|
|Bullet diameter||.258 in (6.6 mm)|
|Neck diameter||.282 in (7.2 mm)|
|Shoulder diameter||.365 in (9.3 mm)|
|Base diameter||.422 in (10.7 mm)|
|Rim diameter||.506 in (12.9 mm)|
|Rim thickness||.063 in (1.6 mm)|
|Case length||2.043 in (51.9 mm)|
|Overall length||2.55 in (65 mm)|
|Rifling twist||1 in 8 in (200 mm)|
|Primer type||Large Rifle|
|Maximum pressure||44,000 psi (300 MPa)|
|Test barrel length: 24"
Source(s): Hodgdon 
Significantly more powerful than the .25-20 Winchester the .25-35 WCF can be used to hunt small deer at 200 yards and medium-sized deer at 100 yards, however, some consider it better suited to small predators such as coyotes instead. It was a popular round in the Winchester Model 1885 High Wall single-shot rifle. No production rifles had been made in .25-35 WCF since the 1940s until 2005 when Winchester resumed chambering their Model 94 rifles in this cartridge. Winchester ammunition has kept the cartridge in production in the U.S.A.
The 6.5×52mmR is a European cartridge that is a close variant of the .25-35 Winchester. It should not be considered identical to the .25-35 Winchester and is not treated as such by the Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives (CIP), which has released separate specifications for each cartridge. The 6.5×52mmR has its origins in Germany and was introduced by RWS and is chambered in many drilling and single-shot rifles. Any interchangeability between the two cartridges is solely dependent on individual chamber tolerances and should not be assumed.
- ".25-35 Win data" from Hodgdon
- Winchester brings back the .25-35 at Gunblast
- 25 Caliber Cartridges by Chuck Hawks
- Cartridge Dimensions at Steve's Pages
- The .25-35 Winchester by Chuck Hawks