.204 Ruger Ammo
The .204 Ruger is the fastest commercial cartridge in production — pushing a 32-grain V-MAX at 4,225 fps and a 40-grain bullet at 3,900 fps, it delivers the flattest trajectory and lowest wind drift of any factory varmint round. Developed jointly by Hornady and Ruger in 2004, the .204 Ruger fills the gap between the popular .223 Remington and the niche .22-250, offering .22-250-class performance from a shorter case that fits a short-action rifle.
Read our full .204 Ruger Ammo Buying Guide ↓
Why .204 Ruger?
The .204 Ruger exists for one purpose: maximum varmint lethality at maximum range with minimum wind drift. Its .20-caliber bullets have extremely high ballistic coefficients relative to their weight, and the cartridge’s velocity is the highest of any factory load. At 300+ yards, the .204 Ruger drifts less in crosswinds than .223 and shoots flatter than .22-250 with lighter bullets. For dedicated prairie dog shooters, ground squirrel hunters, and predator callers who shoot at distance across open terrain, the .204 Ruger is the optimal tool.
Factory Ammunition
Hornady is the primary .204 Ruger ammunition manufacturer, offering 24-grain NTX (lead-free), 32-grain V-MAX (the flagship at 4,225 fps), and 40-grain V-MAX (3,900 fps for better performance in wind). Federal offers the 32-grain Nosler Ballistic Tip. The 32-grain V-MAX is the all-around varmint load; the 40-grain is the better choice for predator-sized game (coyotes, fox) where deeper penetration matters.
.204 Ruger vs. .223 Remington for Varmints
The .223 Remington is far more versatile (defensive, competition, and hunting use beyond varmints), more widely available, and cheaper to shoot. The .204 Ruger is faster, flatter, and drifts less in wind at varmint distances (200–400 yards). For a dedicated varmint rifle, the .204 Ruger is measurably superior. For a rifle that does double duty, .223 is more practical. The .204 Ruger also extends barrel life significantly over .22-250 due to lower powder charges and bore diameter.
.204 Ruger vs. .22-250 Remington
The .22-250 pushes .22-caliber bullets to 3,700–4,000 fps and has been the king of varmint cartridges for decades. The .204 Ruger matches or exceeds .22-250 velocity with lighter bullets, fits in a more compact short-action rifle, and burns less powder (extending barrel life to 3,000+ rounds vs. 1,500–2,000 for .22-250). The .22-250 has a wider bullet selection and is available in more rifles. For a new varmint rifle build today, the .204 Ruger is the more efficient cartridge; the .22-250 has the larger installed base and aftermarket.
Rifles Chambered in .204 Ruger
Ruger (Hawkeye, American), Savage (110 Varmint, 12 series), CVA Cascade, and Tikka (T3x Varmint) all offer bolt-action rifles in .204 Ruger. AR-15-platform uppers in .204 Ruger are also available from specialty manufacturers, using a standard .223-bolt face with a .204 Ruger barrel and chamber.
Frequently Asked Questions
What is the .204 Ruger good for?
Dedicated varmint and predator hunting — prairie dogs, ground squirrels, coyotes, and fox at ranges to 400+ yards.
Is .204 Ruger ammo expensive?
Slightly more than .223 per round, comparable to .22-250. Hornady is the primary factory source.
Can I use .204 Ruger for deer?
Not recommended — the tiny, fast bullets lack the mass and penetration for reliable kills on deer-sized game. This is a varmint-only cartridge.
Is .204 Ruger really the fastest cartridge?
Yes — the 32-grain factory load at 4,225 fps is the highest velocity of any commercially produced cartridge.
See Also: .223/5.56 Ammo • .22 Hornet Ammo • 6mm ARC Ammo • Bolt-Action Rifles • Hunting Rifles • Reloading