Two Calibers, Very Different Experiences
Not sure whether to use .50 or .68 caliber paintballs? I’ve tested both extensively and here’s what I think — plus everything you need to know to pick the right size for your play style.
If you’ve been around paintball for any amount of time, you’ve probably noticed that not all paintballs are the same size. The two you’ll encounter at most fields are .68 caliber and .50 caliber, and while they look like cousins, they play very differently.
I’ve run both calibers through hundreds of games at this point — speedball, woodsball, rec days, private parties — and I have strong opinions on when each one makes sense. Let me walk you through it.
| Feature | .50 Cal | .68 Cal |
|---|---|---|
| Size | ~12.7mm diameter | ~17.3mm diameter |
| Weight | 1.2–1.5g | 3.0–3.5g |
| Pain level | Low (4–5 joules) | Moderate (12–13 joules) |
| Cost per case | $40–$70 | $30–$60 |
| Accuracy | Good under 50–60 ft | Consistent to 80–100 ft |
| Range | Shorter, more wind drift | Longer, holds trajectory |
| Marker availability | Limited | Extensive |
| Best for | Kids, beginners, low-impact events | Competitive, rec, woodsball |
The Basics: What Are .68 Cal and .50 Cal?
The .68 caliber paintball is the original. It’s been the industry standard since paintball’s earliest days in the 1980s, and it remains the dominant round used in competitive play, recreational fields, and by the vast majority of players worldwide. When someone says “paintball,” they’re almost certainly talking about .68 cal.
The .50 caliber paintball showed up much later, gaining real traction in the late 2000s and early 2010s. It was designed specifically for low-impact play — a way to bring younger players and cautious newcomers into the sport without the sting that scares people off. If you’ve read our history of paintball, you know the sport has always been evolving, and .50 cal is one of those evolutions aimed at growing the player base.
Size and Weight Comparison
Let’s get into the numbers, because they matter more than you’d think.
A .68 caliber paintball is roughly 17.3mm in diameter and weighs about 3.0–3.5 grams. A .50 caliber paintball is about 12.7mm in diameter and weighs around 1.2–1.5 grams. That’s a massive difference — the .50 cal ball is nearly a third the weight of its bigger brother.
That weight difference affects everything downstream: how the ball flies, how far it carries, how hard it hits, and how it breaks on impact. The .68 cal’s extra mass gives it more momentum, which means it holds its trajectory better over distance and punches through brush and wind more effectively. The lighter .50 cal is more susceptible to wind drift and loses velocity faster, but at shorter ranges, it’s perfectly functional.
Pain and Impact
Here’s where things get really interesting, and honestly, it’s the main reason .50 cal exists.
A .68 cal paintball traveling at 280 fps carries roughly 12–13 joules of energy on impact. A .50 cal paintball at the same velocity? About 4–5 joules. That’s roughly one-third the energy. You feel that difference immediately.
I remember the first time I took a .50 cal hit after years of playing exclusively with .68. It was at a friend’s birthday party where the field was running low-impact for the kids. I got tagged on the forearm from maybe 30 feet away and honestly thought the ball hadn’t broken at first — the impact was that mild. Compare that to taking a .68 cal shot to the same spot, which leaves you with a proper welt and a story to tell.
If you’re curious about how much paintball stings in general, I wrote a whole piece on does paintball hurt that goes deeper. But the short version: .68 cal hurts in a fun, adrenaline-pumping way. .50 cal barely registers, especially through a layer of clothing.
For kids, nervous first-timers, or anyone who’s pain-averse, .50 cal is a game-changer. It lets people experience the thrill of paintball without dreading every incoming shot.
Accuracy and Range
This is where I see a lot of bad takes online, so let me set the record straight from my own experience.
.68 caliber has better effective range, period. The heavier ball retains energy longer and is less affected by crosswinds. On a calm day, I can land consistent shots out to 80–100 feet with a decent barrel and quality paint. Beyond that, every paintball becomes a prayer regardless of caliber, but .68 gives you a wider window.
That said, .50 cal is surprisingly accurate at close to medium range — say, inside 50–60 feet. In a speedball setting or tight woodsball lanes, I’ve had no issues tagging people with .50 cal. The balls fly straight enough when you’re not asking them to reach out too far. Where they fall apart is on those longer cross-field shots where the lack of mass really shows.
If you’re playing a standard rec game on a reasonably sized field, .50 cal accuracy is perfectly adequate. If you’re playing big scenario games or woodsball on sprawling maps, .68 cal gives you a real advantage at distance.
Cost Comparison
The cost picture is more nuanced than most people realize.
Per round, .50 cal paintballs tend to cost more than .68 cal. It’s a smaller market with fewer manufacturers, so you don’t get the same economies of scale. A case of 2,000 .68 cal paintballs typically runs $30–$60 depending on quality. A comparable quantity of .50 cal paint can run $40–$70 or more. For a full breakdown of what a day on the field costs, check out our guide on how much does paintball cost.
However — and this is an important “however” — .50 cal hoppers are smaller and you physically carry less paint. Most .50 cal setups hold around 100–120 rounds in the hopper compared to 200 for a standard .68 cal loader. You tend to shoot less overall because of this, and many .50 cal players report using fewer paintballs in a day of play.
So while the per-ball cost is higher, your total spend for a day might actually be similar or even lower. In my experience, the cost difference is close to a wash for casual players. It’s competitive players burning through cases who really notice the .68 cal price advantage.
Marker Compatibility
This is a hard rule that trips up beginners constantly: you cannot shoot .50 cal paintballs out of a .68 cal marker, or vice versa. They’re different sizes. A .50 cal ball will rattle around in a .68 cal barrel and either roll out the front or fire wildly off target. A .68 cal ball won’t even fit into a .50 cal setup.
You have two options if you want to play .50 cal:
- A dedicated .50 cal marker. Companies like Tippmann and GOG have made .50 cal-specific models. Selection is more limited than .68 cal, but there are solid options out there.
- A barrel adapter or insert. Some markers accept .50 cal barrel kits that let you convert your existing gun. This is a decent middle ground if you already own a quality .68 cal setup.
If you’re shopping for a new marker, our best paintball guns guide covers the top options, though fair warning — the overwhelming majority of markers on the market are built for .68 cal.
When to Choose .50 Cal
.50 cal is the right call in specific situations, and I think it fills a genuinely important niche:
- Kids and young players. If you’re introducing someone under 12 to paintball, .50 cal is the way to go. Less pain means more fun and fewer tears. Check our paintball age limit guide for more on age-appropriate play.
- First-timers and nervous players. Hosting a paintball party for people who’ve never played? .50 cal removes the fear factor and keeps everyone engaged instead of hiding behind bunkers all day.
- Low-impact events and parties. Many fields now offer dedicated low-impact sessions using .50 cal. These are fantastic for corporate events, birthday parties, and bachelor/bachelorette outings.
- Smaller, close-quarters fields. If you’re playing on a compact field where engagements happen inside 50 feet, .50 cal performs well and hits softer.
When to Choose .68 Cal
For most players in most situations, .68 cal is still king. Here’s when it’s the clear choice:
- Competitive and tournament play. Every major league and tournament format uses .68 cal. There’s no .50 cal tournament scene to speak of.
- Experienced recreational players. If you’ve played before and you enjoy the full-intensity experience, .68 cal delivers more satisfying breaks, better range, and a wider selection of paint quality.
- Woodsball and scenario games. The extra range and wind resistance of .68 cal matters on big outdoor fields. Check out our guide to the best paintballs for recommendations on what to load up.
- Marker selection. Virtually every high-end marker is designed for .68 cal. If you want the widest choice of equipment, .68 is the ecosystem you want to be in.
My Recommendation
I’m going to be direct: if you’re a regular player, stick with .68 cal. It’s the standard for a reason. Better range, better paint selection, vastly more marker options, and a competitive scene built entirely around it. The “pain” factor is part of what makes paintball thrilling — it creates real stakes, real adrenaline, and real respect for the game.
But I’m also genuinely glad .50 cal exists. I’ve watched it bring people into the sport who would have never tried traditional paintball. I’ve seen 8-year-olds light up after their first .50 cal game and immediately ask to come back. That’s incredible for the future of paintball.
My honest take? Use .68 cal for yourself and your crew. Use .50 cal when you’re bringing newcomers, kids, or anyone who needs a gentler introduction. There’s no wrong answer — just the right tool for the right situation.