The .357 Herrett is a wildcat cartridge designed by Steve Herrett and developed with the collaboration of Remington and wildcatter Ken Waters in the 1970s. The cartridge is based on a shortened and necked-up .30-30 Winchester case, tailored for use in the Thompson/Center Contender single-shot pistol.
The .357 Herrett was intended primarily for handgun hunters looking for improved performance over the .357 Magnum, offering higher velocity and energy for better effectiveness on medium-sized game such as deer. Typical bullet weights range from 110 to 200 grains, with the cartridge delivering impressive accuracy and stopping power at reasonable hunting distances.
The .357 Herrett is known for its versatility and the ability to use a wide range of bullet types and weights. However, being a wildcat cartridge, it requires handloading as factory ammunition is not commercially available. Handloaders can take advantage of its performance potential by tailoring loads to specific needs.
This cartridge has become somewhat of a niche option but remains popular among enthusiasts who own the Thompson/Center Contender and seek a powerful, accurate option for hunting or target shooting.
Welcome to our cartridge knowledge base, featuring expert insights from M. L. (Mic) McPherson on a wide range of cartridges. Whether you're new or experienced, discover practical tips and share your field experiences to enrich our community. Please no disparaging remarks on other writers and no powder load data. Help shape a valuable resource for all enthusiasts. If you find anything factually incorrect, we want to hear about it! If you have any interesting comments or reloading tricks that you would like to share on this cartridge, share them here!
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Lee Collet Necksizing 2-Die Set |
Lee RGB Die Set |
Lee Full-Length Sizing Die Set |
Lee Breech Lock Die Set |
Lee Ultimate 4-Die Set |
Lee Loader |
Single Dies |
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Full-Length Sizing Die |
Sizing Die |
Neck Sizing Die |
Undersize Sizing Die |
Charging Die |
Seating Die |
Factory Crimp Die |
91259 (Collet Style) |
Taper Crimp Die |
Inline Bullet Feed Die |
Case Conditioning Tools |
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Case Length Gauge and Shell Holder |
90493 |
Quick Trim Die |
Presses |
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Reloader Press (50 RPH) |
90045 (Lee Reloader Press) |
Hand Press (50 RPH) |
Breech Lock Hand Presses |
Challenger Press (50 RPH) |
90588 (Challenger III) |
Classic Cast Press (50 RPH) |
90998 (Classic Cast Press) |
Value Turret Press (250 RPH) |
Classic Turret Press (250 RPH) |
90304 (Classic Turret Press Kit) 90064 (Classic Turret Press) |
Ultimate Turret Press (250 RPH) |
91910 (Ultimate Turret Press) |
Pro 1000 Press (500+ RPH) |
Pro 4000 Press (500+ RPH) |
Six Pack Pro Press (500+ RPH) |
91823 (Six Pack Pro Reloading Press) |
Shell Plates and Holders |
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Priming Tool Shell Holder |
90203 (#3) |
Universal Press Shell Holder |
90520 (R3) |
X-Press Shell Holder (APP) |
91536 (#3) |
Pro 1000 Shell Plate |
Auto Breech | Pro 4000 Shell Plate |
90629 (3) |
Six Pack Pro Shell Plate |
91837 (3L) |
Inline Bullet Feed |
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Inline Bullet Feed Die |
Inline Bullet Feed Kit |
Inline Bullet Feed Magazine |
Bullet Casting |
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Classic Bullet Sizing Kit |
Breech Lock Bullet Sizer and Punch |
Bullet Molds |
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