4570 Vs 450 Bushmaster: Which One Should You Choose?
If you’re a big game hunter or just love spending weekends at the gun range, you’ve probably heard of the ongoing debate: 4570 vs 450 Bushmaster. These two heavy-hitting cartridges have a loyal fanbase, and choosing between them can be tricky.
So, how do you know which one is right for you?
Let’s break it down in simple terms and help you decide which cartridge suits your needs best.
Where Do These Cartridges Come From?
To know which cartridge is better for your purpose, it’s helpful to understand where they came from.
The .45-70 Government dates way back to 1873. Yeah, it’s that old! It was originally designed for use in military rifles like the Springfield Trapdoor. Over the years, it’s evolved into a favorite choice for hunters who need deep penetration and stopping power. This round has earned a reputation as a hard-hitting classic.
On the other hand, the .450 Bushmaster is the new kid on the block. Introduced in the early 2000s, this cartridge was specifically created for use in AR-15 platforms. Think modern performance in a compact, semi-auto-friendly design. It quickly became popular with deer hunters, especially in states with straight-wall cartridge hunting laws.
What’s the Difference in Bullet Size and Speed?
Let’s talk about what really matters — speed and size. These two factors play a big role when you’re deciding between the 4570 vs 450 Bushmaster.
The .45-70 usually shoots heavier bullets — we’re talking 300 to 500 grains. That gives it massive stopping power, making it a go-to for large or even dangerous game like bear or moose. But because of its heavier load, it’s generally a little slower — travelling around 1,300 to 2,100 feet per second based on the load.
In contrast, the .450 Bushmaster fires lighter bullets, often in the 250-300 grain range. But don’t let the smaller size fool you. These rounds scream downrange at about 2,200 to 2,800 feet per second. That translates to flatter shooting and faster impacts at moderate range.
So what’s faster? The Bushmaster. What hits harder up close? The 4570, hands down.
Comparison of Recoil and Comfort
Nobody likes getting punched in the shoulder with every shot, right?
If you’re wondering which round kicks harder, here’s a quick idea: the .45-70 often has more recoil, especially when loaded hot for big game. That shoulder-thumping power may take some getting used to — or you might love it, depending on your shooting experience.
The .450 Bushmaster, while still no lightweight, offers a bit less recoil. Because it’s built for modern semi-autos, it’s usually a smoother shooting experience. If you’re planning on spending all day at the range or want faster follow-up shots, the Bushmaster is easier on the body.
Ammunition Availability and Cost
Cost and convenience matter too, especially if you’re planning to shoot regularly.
Generally, .450 Bushmaster ammo is more affordable and easier to find — especially at stores with supplies tailored for AR shooters. If you’re a fan of semi-auto rifles and don’t want to break the bank, the Bushmaster has the edge.
The .45-70, being a more niche and older cartridge, can be pricier. Ammo variety exists, but it’s limited in local shops outside hunting-rich areas. Expect to pay more, especially for premium or high-power loads.
Still, many hunters are loyal to the 4570 for its power and performance — and say it’s worth every penny.
Rifle Compatibility: Old School vs Tactical
One of the biggest differences in the 4570 vs 450 Bushmaster debate is the kind of rifle each works with.
The .45-70 is most often chambered in traditional-style lever-action rifles. Think classic cowboy guns. These guns are loved for their timeless look and rugged reliability. If you’re into vintage firearms and hunting nostalgia, the 4570 might be your jam.
The .450 Bushmaster, however, was born for the AR-15. It also works well in modern bolt-action rifles built for tactical or semi-tactical shooting. If you dream of customizing your rifle with optics, suppressors, or rails, the Bushmaster gives you that freedom.
Bottom line? If you favor modern platforms and rapid follow-up shots, go Bushmaster. If you want Old West charm and reliability, the 4570 is a great pick.
Performance in Hunting Scenarios
Let’s imagine you’re heading into the woods for a hunt. What does each round offer in the real world?
For big animals — think elk, hogs, and even bear — the .45-70 shines. Its deep penetration and heavy projectiles are perfect when you need that extra punch at close to medium ranges. Sure, it drops off in accuracy at longer distances, but inside 150 yards, it’s a hammer.
Now, if you’re mainly hunting deer or wild boar and want a flatter shooting, mid-range performer, the .450 Bushmaster is ideal. It performs great out to 200 yards and lets you take faster shots. In many states, it’s the most popular straight-wall cartridge for deer season.
So which is better for hunting? It depends on what you’re hunting — and how far away it is.
Accuracy and Range
When it comes to long-range accuracy, neither of these calibers is winning any sniper awards. But that doesn’t mean they can’t deliver when used appropriately.
The .45-70, due to its slower speed, tends to have a more pronounced bullet drop, especially past 150 yards. You’ll need to adjust your aim and possibly use a rangefinder if you’re hunting in open country.
The .450 Bushmaster, being faster and lighter, performs a little better at range. It also tends to fly straighter, making it easier for newer shooters or anyone wanting to take shots out to 200-250 yards without fancy calculations.
Both can be accurate — if you practice — but in general, the Bushmaster gives you a bit more wiggle room for that longer shot.
Which One is Legal in Your State?
Before you rush off to buy either one, check your local laws.
Some states — especially in the Midwest — require hunters to use straight-wall cartridges during certain hunting seasons. Why? Safety and better bullet control in wooded or populated areas.
The .450 Bushmaster meets these straight-wall cartridge rules in most of those states, making it legal for deer hunting in places like Michigan, Ohio, and Iowa.
The .45-70 is also straight-walled, but its status can vary by state. While many also approve it, some limit its use based on bullet diameter or muzzle energy.
So always double check your local hunting regulations before picking a caliber. You don’t want to find out the hard way that your favorite round isn’t allowed.
Is the 4570 or 450 Bushmaster Right for You?
With all these details out of the way, let’s ask the big question again: 4570 vs 450 Bushmaster — which one should YOU choose?
Here’s a quick breakdown to help:
- Go with the .4570 if you’re hunting big, tough animals like bear or moose, or if you enjoy classic lever-action rifles and don’t mind heavier recoil.
- Choose the .450 Bushmaster for medium game like deer or wild boar, especially if you’re using an AR-15 or modern rifle setup. It’s great in states with straight-wall cartridge laws and offers easier aiming out to 200 yards.
And if possible? Try both! You might find that the feel, recoil, and performance of one just “clicks” with you better.
Final Thoughts
In the 4570 vs 450 Bushmaster showdown, there’s no wrong choice — just the one that fits your hunting style better.
The .45-70 is a timeless powerhouse, perfect for hunters looking for raw stopping power and heritage. The .450 Bushmaster is a modern marvel tailor-made for AR shooters and those living in straight-wall hunting zones.
Think about your typical shooting distance, what kind of game you hunt, and the type of rifle you prefer. That should point you in the right direction.
And remember: whichever you pick, putting in range time and getting comfortable with your weapon is what truly makes a great hunter.
Happy shooting!