350 Legend – 255 gr OT – Winchester Suppressed (SUP350) – 200 Rounds

A suppressed 350 Legend is one of the quietest rifles you can build, as long as the ammunition stays below the speed of sound. This listing is Winchester Super Suppressed 350 Legend 255 grain open tip subsonic ammo, MPN SUP350, sold as 200 rounds for suppressor owners, AR and bolt action shooters, and anyone who wants a quiet range load.

Winchester rates this load at 1,060 fps with 636 ft-lbs of muzzle energy. Staying under the sound barrier removes the supersonic crack, so a suppressor can do its job and the report is noticeably quieter. The heavy 255 grain open tip bullet keeps momentum high despite the low velocity. Winchester lists this as a range load, so it is intended for target work and suppressed practice rather than as a hunting bullet. Expect a curved trajectory past 100 yards and zero accordingly.

This ammunition fits rifles chambered in 350 Legend, including the Winchester XPR and SXR, Ruger American Ranch, Savage Axis, CVA Scout, Henry Single Shot, and AR-15 rifles with 350 Legend uppers and magazines. A common question is whether a semi-automatic AR will cycle subsonic 350 Legend. Some will not, especially unsuppressed, because subsonic loads generate less gas. A suppressor or an adjustable gas block often helps, and bolt actions are unaffected. Another common question is whether 350 Legend is interchangeable with 357 Magnum or 9mm because the bullet diameters are similar. It is not. Only fire it in a rifle chambered for 350 Legend.

Winchester SUP350 is new production ammunition, not reloads, made in the USA. It uses reloadable boxer-primed brass cases and non-corrosive primers. The listing contains 10 boxes of 20 rounds for 200 total from one lot, which matters with subsonic ammo because velocity consistency shot to shot keeps you safely below the speed of sound.