Ruger 357 Magnum (77/357) Extended Capacity Magazine

(1 customer review)


  • Designed for cartridges with an overall length of 1.55″ to 1.590″ (see details below)
  • Limiting purchases to 1 per person/household/etc — there’s a lot more of you wanting these than we were prepared to make this first time around.

Out of stock

SKU: 357-9rd Category:


A 9-round magazine for the Ruger 77/357(yes, we were aiming for 10 rounds but managed to miss the mark)

  • This magazine is designed for cartridges with an overall length of 1.55″ to 1.590″

— Can accept, feed and function with Hornady FTX(LEVERevolution) bullets loaded out to 1.600″ overall length because the nose is not flat, but pointed.

— Regarding overall length, someone did a great amount of footwork here learning Cartridge Overall Length for many OEM’s 357 Magnum ammo.

— Most commercial ammunition with projectiles below 190 grains should fit and feed without issue.

  • We are continuing to experiment with this ammunition compatibility matter; to see what updates & tweaks we may have learned about, please email us — ma**@iq*********.com


Fully machined assembly:

  • Machined from aircraft grade aluminum
  • Black hard anodized finish
  • Hardened feed-lips & front stud
  • Plastic magazine follower

Made in Montana.

One year manufacturer’s warranty against defects in materials and workmanship.

Notice: Please be advised that it will be necessary to function-test with your preferred ammunition before going into the field to determine compatibility with our magazine. Insertion and removal of a loaded magazine may be easier with the bolt in the open position.

Additional information

Weight 2 lbs
Dimensions 3.5 × 1.5 × 7 in

1 review for Ruger 357 Magnum (77/357) Extended Capacity Magazine

  1. Keith

    Got one of these for a project rifle. Had my 77/357 barreled and chambered to 10mm magnum and they fed well through this magazine.

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