The best ammo for Ruger Mark IV pistols depends on how you use your firearm. Whether you shoot recreationally, compete in rimfire matches, train new shooters, or spend weekends at the range, choosing reliable .22 LR ammunition helps you get the most accuracy and enjoyment from one of the most popular rimfire pistols available.
The Ruger Mark IV continues the long-running tradition of Ruger rimfire pistols known for accuracy, durability, and reliability. Chambered in the affordable .22 Long Rifle (.22 LR) cartridge, the Mark IV is popular with beginners, experienced shooters, and competitive rimfire enthusiasts.
For most Ruger Mark IV owners, 40 grain standard velocity .22 LR ammunition is an excellent choice because it provides a balance of accuracy, reliability, and affordability.
What Ammo Does a Ruger Mark IV Use?
The Ruger Mark IV uses:
.22 Long Rifle (.22 LR) ammunition
Popular Ruger Mark IV models include:
- Ruger Mark IV Standard
- Ruger Mark IV Target
- Ruger Mark IV Hunter
- Ruger Mark IV Competition
- Ruger Mark IV 22/45
| Specification | Details |
|---|---|
| Cartridge | .22 Long Rifle (.22 LR) |
| Common Bullet Weights | 36 grain, 40 grain |
| Firearm Type | Semi-automatic rimfire pistol |
| Best Use | Target shooting, training, competition |
The popularity of the Mark IV comes from its combination of accuracy, low ammunition costs, and easy shooting characteristics.
Best .22 LR Ammo for Ruger Mark IV
The ideal ammunition depends on your shooting goals.
Most Ruger Mark IV owners prioritize:
- Accuracy
- Reliable cycling
- Clean performance
- Affordable pricing
Unlike larger calibers, .22 LR offers shooters the ability to practice extensively without high ammunition costs.
Best Overall: 40 Grain .22 LR Ammo
For most Ruger Mark IV shooters, 40 grain .22 LR ammunition provides the best overall performance.
Advantages:
- Traditional .22 LR bullet weight
- Excellent accuracy potential
- Reliable function
- Widely available
40 grain ammunition works well for:
- Target shooting
- Range practice
- Training
- Recreational shooting
The heavier 40 grain bullet is the standard choice for many precision-oriented rimfire shooters.
Best Accuracy Ammo for Ruger Mark IV
The Ruger Mark IV is known for accuracy, especially in target and competition configurations.
Shooters looking for maximum precision may prefer:
- Match-grade .22 LR ammunition
- Standard velocity target loads
- Premium rimfire cartridges
Accuracy can vary depending on:
- Barrel length
- Individual firearm preference
- Shooting distance
- Ammunition consistency
Testing different loads is the best way to find the ammunition your Mark IV prefers.
Best Budget Option: Bulk .22 LR Ammo
One of the biggest advantages of the Ruger Mark IV platform is affordable shooting.
Bulk .22 LR ammunition helps shooters:
- Reduce cost per round
- Shoot more frequently
- Practice longer sessions
- Keep ammunition available
Popular quantities include:
- 325 rounds
- 500 rounds
- 1,000 rounds
- Larger cases
For recreational shooters, bulk .22 LR is often the most practical option.
Standard Velocity vs High Velocity .22 LR
Ruger Mark IV owners often compare standard velocity and high velocity ammunition.
| Ammo Type | Best Use |
|---|---|
| Standard Velocity | Accuracy and target shooting |
| High Velocity | General shooting and reliable cycling |
Many Mark IV pistols perform well with both types.
For precision shooting, standard velocity loads are often preferred because they can provide consistent accuracy.
Best Ammo for Ruger Mark IV Competition Shooting
The Ruger Mark IV is widely used in rimfire competitions because of its accuracy and ergonomics.
Competition shooters often look for ammunition with:
- Consistent velocity
- Tight accuracy
- Reliable ignition
- Clean performance
Premium .22 LR ammunition can help maximize the pistol’s accuracy potential.
How Much Ammo Should You Buy for a Ruger Mark IV?
The amount depends on how often you shoot.
Occasional Shooter
500 rounds
Good for occasional range visits.
Regular Shooter
1,000 rounds
A practical supply for frequent practice.
Competition Shooter
5,000+ rounds
Useful for:
- Regular training
- Match preparation
- Multiple rimfire firearms
Why Buy Bulk .22 LR Ammo for Ruger Mark IV?
The Ruger Mark IV is designed for affordable, high-volume shooting.
Buying bulk .22 LR provides:
- Lower cost per round
- More practice time
- Easier range preparation
- Fewer ammunition purchases
For shooters who enjoy rimfire training, having a larger supply available makes shooting more convenient.
Ruger Mark IV Ammo Buying Tips
Confirm Your Cartridge
The Ruger Mark IV uses:
.22 Long Rifle (.22 LR)
Do not confuse it with:
- .22 Magnum (.22 WMR)
- .17 HMR
Always verify your firearm markings before buying ammunition.
Test Different Loads
Rimfire pistols can perform differently with various ammunition brands.
A good approach:
- Test multiple loads
- Compare accuracy and reliability
- Buy your preferred ammunition in bulk
Store .22 LR Properly
Keep ammunition:
- Dry
- Protected from moisture
- Stored securely
Ruger Mark IV vs Ruger 10/22 Ammo
Both firearms use:
.22 Long Rifle (.22 LR)
| Firearm | Ammo |
|---|---|
| Ruger Mark IV | .22 LR |
| Ruger 10/22 | .22 LR |
The difference is the firearm platform, not the cartridge.
The two firearms make an excellent combination for affordable rimfire training.
Frequently Asked Questions About Ruger Mark IV Ammo
What ammo does a Ruger Mark IV use?
The Ruger Mark IV uses .22 Long Rifle (.22 LR) ammunition.
What grain ammo is best for Ruger Mark IV?
Many shooters prefer 40 grain .22 LR because it offers a strong balance of accuracy and reliability.
Can Ruger Mark IV shoot bulk ammo?
Yes. Many Ruger Mark IV owners use bulk .22 LR ammunition for training and recreational shooting.
Is standard velocity ammo better for Ruger Mark IV?
Standard velocity ammunition is often preferred for accuracy-focused shooting, while high velocity loads may work well for general use.
How much .22 LR ammo should I buy?
Many shooters purchase 500 to 1,000 rounds, while frequent rimfire shooters often buy larger quantities.
Shop Bulk .22 LR Ammo for Ruger Mark IV Pistols
The Ruger Mark IV remains one of the most popular rimfire pistols because it delivers excellent accuracy, affordable shooting, and dependable performance.
Choosing the right .22 LR ammunition helps shooters spend more time practicing while keeping shooting costs low.
Explore Bulk Ammo To Go’s selection of bulk .22 LR ammo for Ruger Mark IV pistols, Ruger 10/22 rifles, and other rimfire firearms.