Description
Winchester built the Dynapoint line around simplicity and reliability. You get a 45-grain copper-plated hollow point that reduces barrel fouling while maintaining the ballistic performance that makes .22 WMR attractive to hunters and range shooters alike. At 1550 feet per second, this load sits in the middle ground of .22 Magnum ammunition—plenty of energy for small game and varmints without the overkill that faster loads can bring to delicate targets.
Winchester Dynapoint for hunting and varmint work
The .22 WMR cartridge outperforms standard .22 LR in trajectory, velocity, and energy downrange, which translates to cleaner, more humane kills on small game like rabbits, squirrels, and pest animals. The Dynapoint's hollow point design provides controlled expansion rather than the unpredictable performance of solid bullets. This moderate velocity also matters if you're processing game for the table, since it causes less meat damage than higher-velocity magnum loads.
Shot placement and practical accuracy
These rounds chamber and fire reliably in both rifles and handguns chambered for .22 WMR. Real-world use shows they deliver acceptable accuracy for hunting at reasonable distances, with many reporting reliable performance in semi-auto pistols and revolvers. The copper-plating keeps fouling minimal, so you'll spend less time cleaning and more time shooting. Each box contains 50 rounds of non-corrosive, boxer-primed ammunition ready to go.
A straightforward choice for working shooters
Dynapoint ammunition comes down to honest value. It's not a precision target load or a high-velocity varmint round, but it fills the sweet spot for hunters who want dependable performance without paying premium prices. The copper-plated construction means less buildup in your barrel, and the controlled expansion hollow point works for both hunting applications and recreational shooting where you want predictable ballistics.
Key Specifications
- Caliber: .22 Winchester Magnum Rimfire (.22 WMR)
- Bullet Weight: 45 grains
- Bullet Type: Copper-Plated Hollow Point
- Muzzle Velocity: 1550 feet per second
- Muzzle Energy: 240 foot-pounds
- Case Material: Brass
- Primer Type: Rimfire
- Rounds Per Box: 50
- Corrosive: No
- Manufacturer: Winchester
- Manufacturer Part Number: USA22M
- UPC: 020892101579
What’s Included
- 50 rounds of .22 WMR ammunition in a Winchester box
Frequently Asked Questions
Can I shoot Winchester .22 WMR ammunition in a .22 LR firearm?
No. .22 WMR and .22 LR are not interchangeable. The WMR uses a longer, larger-diameter case and higher pressure. You must use ammunition only in firearms specifically chambered for .22 WMR. Attempting to fire WMR ammunition in a .22 LR firearm can be dangerous and damage your gun.
How does the .22 WMR compare to standard .22 LR for small game?
The .22 WMR delivers significantly more velocity and energy than .22 LR, resulting in flatter trajectory and longer effective range. At moderate ranges, the WMR provides cleaner, more humane kills on rabbits, squirrels, and varmints. The tradeoff is that WMR ammunition costs more and may cause more meat damage on very small game than lighter .22 LR loads.
What's the effective range of this Winchester Dynapoint load?
The Dynapoint's moderate 1550 fps velocity makes it effective on small game and varmints to about 50-75 yards with a handgun, or 100+ yards with a rifle in skilled hands. At longer distances, bullet drop and energy loss become more significant factors, so your specific firearm and shooting ability matter.
Does copper-plated ammunition reduce fouling compared to other .22 WMR loads?
Yes. The copper plating on these bullets reduces barrel fouling and buildup compared to plain lead hollow points. This means less frequent cleaning and easier maintenance of your firearm, which is especially valuable if you shoot regularly.




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