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25-303

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The 25-303 cartridge is a wildcat round, created by modifying the standard .303 British cartridge case to accept .257 caliber (6.5mm) bullets. This involves necking down the .303 British case to the smaller diameter. The 25-303 is relatively obscure and not commonly found in commercial production; it's often hand-loaded by enthusiasts who are looking for a unique cartridge with good ballistic performance for hunting or target shooting.
The cartridge was developed to provide shooters with a flatter trajectory and higher velocity compared to the original .303 British round, making it suitable for medium game hunting in regions where the .303 British is traditionally used. Given its wildcat status, users typically have specialized reloading equipment and knowledge.


Die Sets
Lee Collet Necksizing 2-Die Set
Lee RGB Die Set
Lee Full-Length Sizing Die Set
90793
Lee Breech Lock Die Set
Lee Ultimate 4-Die Set
Lee Loader
Single Dies
Full-Length Sizing Die
91136
Ez X Expander: SE2540
Sizing Die
Neck Sizing Die
Undersize Sizing Die
Charging Die
90194 (Long Charging Adapter)
Seating Die
91448
Factory Crimp Die
91491 (Collet Style)
Taper Crimp Die
Inline Bullet Feed Die
Die Accessories
Micrometer Adjuster
92215
Guided Decapper
Case Conditioning Tools
Case Length Gauge and Shell Holder
Quick Trim Die
Presses
Reloader Press (50 RPH)
Hand Press (50 RPH)
Challenger Press (50 RPH)
Classic Cast Press (50 RPH)
Value Turret Press (250 RPH)
Classic Turret Press (250 RPH)
Ultimate Turret Press (250 RPH)
Pro 1000 Press (500+ RPH)
Pro 4000 Press (500+ RPH)
Six Pack Pro Press (500+ RPH)
Shell Plates and Holders
Priming Tool Shell Holder
Universal Press Shell Holder
X-Press Shell Holder (APP)
Pro 1000 Shell Plate
Auto Breech | Pro 4000 Shell Plate
Six Pack Pro Shell Plate
Inline Bullet Feed
Inline Bullet Feed Die
Inline Bullet Feed Kit
Inline Bullet Feed Magazine
Bullet Casting
Classic Bullet Sizing Kit
Breech Lock Bullet Sizer and Punch
Bullet Molds

Micrometer Adjust Screw

From $20.00

Power Grip Shell Holder

92149
$10.00

Challenger III

From $117.00

Ultimate Turret Press

From $320.00

Deluxe APP Press Kit

91898

Includes:

  • Press
  • Roller Handle
  • Priming System
  • Universal Case Feeder
  • APP Deprime Kit
  • Bottle Adapter
$155.00

Six Pack Pro Press

From $400.00