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284 Winchester

284w
The .284 Winchester is a rifle cartridge introduced by the Winchester Repeating Arms Company in 1963. It was designed to offer 7mm ballistic performance similar to that of the .270 Winchester and the .280 Remington, but in a shorter cartridge case, which allows it to be used in short-action rifles. The case features a rebated rim and a relatively large powder capacity, which contributes to its performance.
Key characteristics:
- Bullet diameter: .284 inches (7.21 mm)
- Case length: 2.170 inches (55.1 mm)
- Overall length: 2.800 inches (71.1 mm)
- Max pressure: Approximately 56,000 PSI
The .284 Winchester is known for its efficiency and accuracy. It has found a niche in both hunting and long-range shooting. In hunting, it is used for a variety of game, from deer to larger animals, due to its flat trajectory and substantial power. Although it never achieved widespread popularity, it has a dedicated following among enthusiasts and has seen renewed interest for use in custom long-range and precision rifles.

Die Sets
Lee RGB Die Set
Lee Full-Length Sizing Die Set
90777 (2-Die set)
Lee Breech Lock Die Set
Lee Ultimate 4-Die Set
Lee Loader
Single Dies
Full-Length Sizing Die
91067
Ez X Expander: SE2315
Sizing Die
Neck Sizing Die
Undersize Sizing Die
Charging Die
90194 (Long Charging Adapter)
Seating Die
91429
Factory Crimp Die
91249 (Collet Style)
Taper Crimp Die
Inline Bullet Feed Die
Die Accessories
Micrometer Adjuster
92215
Guided Decapper
91578
Undersize Flash Hole EZ X Expander
SE1906
Case Conditioning Tools
Case Length Gauge and Shell Holder
90129
Quick Trim Die
91362
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
90202 (#2)
Universal Press Shell Holder
90519 (R2)
X-Press Shell Holder (APP)
91535 (#2)
Pro 1000 Shell Plate
Auto Breech | Pro 4000 Shell Plate
Six Pack Pro Shell Plate
91836 (2L)
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 $10.00

Power Grip Shell Holder

92149
$10.00

Breech Lock Hand Presses

Click here to view parts

From $73.00

Challenger III

From $120.00

Ultimate Turret Press

From $320.00

Six Pack Pro Press

From $400.00