17 WSM – 25 Gr Polymer Tip – Winchester (S17W25) – 500 Rounds

Winchester offers the 17 Super Magnum in a fast light-bullet load and a heavier load built for more energy on tougher varmints. This listing is the heavier option, Winchester Varmint HE 17 WSM 25 grain polymer tip ammo, MPN S17W25, sold as 500 rounds. It is popular with hunters who want more punch on groundhogs, foxes, and similar animals.

Winchester rates this load at 2,600 fps with 375 ft-lbs of muzzle energy. The 25 grain bullet is the heaviest common 17 caliber rimfire bullet, so it carries more momentum and resists wind better at longer ranges than lighter 17 bullets of similar shape. The polymer tip helps expansion start quickly, and the heavier bullet tends to penetrate a bit deeper on medium varmints. It remains a varmint load, so it is not suitable for deer-size game.

This ammunition fits rifles chambered in 17 Winchester Super Magnum, such as the Savage B-Mag, Ruger 77/17 in 17 WSM, and Browning T-Bolt in 17 WSM. A common question is whether you should choose the 20 grain HV or 25 grain HE load. The 20 grain shoots flatter for small targets like prairie dogs, while the 25 grain hits harder and handles wind better for larger pests. Another common question is whether 17 WSM is louder than other rimfires. It is noticeably louder than 22 LR and 17 HMR, so wear hearing protection, especially when shooting from a vehicle or near buildings.

Winchester S17W25 is new production ammunition, not reloads, made in the USA. It uses rimfire priming in brass cases and is not reloadable. This listing ships as 10 boxes of 50 rounds for 500 rounds total from one lot. Because the 17 WSM shoots flat enough to reach well beyond typical rimfire distances, keeping a single lot makes your recorded drops and wind holds dependable all season.