If you've spent any time shooting ground squirrels in Oregon's high desert or calling coyotes across Eastern Oregon's wide open sagebrush country, you know what flat trajectory and minimal wind drift mean on a practical level. The .17 Hornet delivers both in a package that's surprisingly easy to reload, brutally accurate, and — for varmint work inside 300 yards — genuinely hard to beat.

The cartridge itself is a .22 Hornet case necked down to .17 caliber. Hornady legitimized it commercially in 2012, and since then it's developed a strong following among handloaders who want more than a .17 HMR but don't need the barrel wear and report of a .22-250. This is the cartridge that fits between those two benchmarks, and it excels at the realistic hunting ranges most varmint hunters actually shoot.

Why the .17 Hornet Makes Sense for Oregon Varmint Hunters

Ground squirrel season in Oregon's high desert — Harney County, Lake County, the Paulina Valley — runs from spring through summer, with peak populations in June and July. The open terrain means shots from 50 to 250 yards are common, and 300-yard shots come up regularly if you're sitting behind a rifle on a good morning. The .17 Hornet's muzzle velocity of around 3,650 fps with a 20-grain bullet gives it a point-blank range of approximately 250 yards when zeroed at 200 — meaning most ground squirrel shots don't require holdover at all.

The cartridge also excels on coyotes at the ranges most callers actually shoot — inside 250 yards. The 25-grain bullet option carries enough energy for clean kills while doing minimal pelt damage, which matters to trappers and callers who sell or save their hides.

Components for the .17 Hornet

Brass

Hornady is the primary source for .17 Hornet brass, and it's good quality right out of the box. Cases are small and thin-walled, so handle them gently during sizing. Neck tension on .17-caliber cases is critical — a worn sizing die will show up as inconsistent velocity before you notice it visually. Expect 6–8 reloads from Hornady brass before case head separation becomes a concern, especially if you're running near maximum pressures.

Some handloaders reform .22 Hornet brass to .17 Hornet to save cost. The process works but requires careful case preparation and a quality neck-sizing die — the yield per batch is lower and prep time increases significantly. For most shooters, purchasing factory .17 Hornet brass is the better path.

Primers

Use small rifle primers only. The .17 Hornet runs at high pressure (up to 54,000 CUP), and the small case volume means primer selection has an outsized effect on velocity consistency. CCI BR-4 benchrest primers and Federal 205M Match primers are the top choices for this cartridge among precision-minded handloaders. Standard small rifle primers (CCI 400, Winchester WSR) work fine for volume varmint shooting where extreme ES numbers aren't the priority.

Powder

The .17 Hornet's tiny case — approximately 13.1 grains of water capacity — demands fast-burning powders. The following are proven performers:

• Lil' Gun (Hodgdon): The top powder for this cartridge. Developed specifically for small-capacity cases, Lil' Gun gives consistent ignition, excellent velocity, and low ES in the .17 Hornet. Most published data centers on Lil' Gun, and for good reason.
• H-110 / Winchester 296: Slightly faster than Lil' Gun. Can produce excellent results but is more sensitive to charge weight variations in this case size. Work up carefully.
• Accurate No. 9: A viable alternative when Lil' Gun is unavailable. Slightly lower velocity ceiling but very consistent across temperature ranges — a real advantage during Oregon's summer heat swings.

Bullets

• Hornady 20-grain V-MAX: The standard for ground squirrel and prairie dog work. Explosive expansion, outstanding BC for the weight (.310), and very accurate in most .17 Hornet barrels.
• Hornady 25-grain HP: Better for coyotes and larger varmints. Retains more energy at distance and causes less pelt damage than the V-MAX on close-range hits.
• Berger 25-grain FB Target: For handloaders who want to squeeze maximum accuracy from the platform. Designed for match-grade benchrest use but performs well at varmint ranges.

Sample Load Data

Always start 10% below maximum and work up. These loads are from published sources — always verify against a current reloading manual before loading.

• 20-grain Hornady V-MAX / Lil' Gun: Start at 10.5 gr, max at 11.5 gr. Expect 3,600–3,700 fps from a 24-inch barrel.
• 25-grain Hornady HP / Lil' Gun: Start at 9.5 gr, max at 10.5 gr. Expect 3,200–3,350 fps from a 24-inch barrel.

The Reloading Process

Sizing the small .17 Hornet case requires patience. Full-length resize each case, then trim to 1.345 inches — case trimming is more important here than in larger cartridges because the thin neck is sensitive to excess length. Deburr and chamfer lightly. Charge your cases with a quality powder measure or hand-trickle to the kernel for best results — the small charge weights (10–12 grains) make a single kernel of powder a measurable percentage of your total charge.

Seat bullets to a COAL of 1.723 inches as a starting point, then adjust off the lands per your specific rifle's chamber. .17 Hornet rifles vary widely in throat dimensions; a bullet jump of .010–.020 inch typically gives the best results.

Barrel Life and Field Use

Expect 3,000–4,000 rounds of accurate barrel life from a quality stainless barrel in .17 Hornet. Let the barrel cool between strings during high-volume sessions — the small case doesn't generate as much heat as a .22-250, but you'll still see point-of-impact shift after 10 rapid-fire shots. For Oregon's desert squirrel sessions where shooting opportunities come fast, bring a quality bipod and let the barrel cool every 15 rounds or so.

The .17 Hornet is not a long-range cartridge — wind drift becomes significant past 300 yards with 20-grain bullets, and past 275 with 25-grain pills. But for the bulk of Pacific Northwest varmint hunting, where squirrel-field shots rarely exceed 250 yards and most coyote opportunities happen inside 200, this cartridge is a legitimate specialist that will outperform anything else in its class.