Remington 783 Magazine Capacity: A Guide to Maximizing Your Rifle's Potential
The Remington 783 uses three different magazine bodies, and capacity depends on which one your rifle takes: short action (4 rounds, or 5 for .223/.222 Remington), long action (4 rounds), or magnum long action (3 rounds). All three look similar from across a gun counter, but they are not interchangeable — order by the exact caliber stamped on your barrel, not by round count alone.
Every deer season we field a dozen versions of the same complaint: "why does my buddy's .308 hold 4 rounds when my magnum only loads 3?" It's not a defect. It's a misunderstanding of how capacity works across the 783's action lengths, and that misunderstanding leads people to order the wrong magazine or blame a good rifle for a worn part.
Remington 783 capacity by caliber
| Action length | Calibers | Capacity |
|---|---|---|
| Short action | .308 Winchester, .243 Winchester, 6.5 Creedmoor | 4 rounds (8-round XT upgrade also available) |
| Short action | .222 Remington, .223 Remington | 5 rounds |
| Short action | 450 Bushmaster | 3 rounds |
| Long action | .30-06 Springfield, .270 Winchester, .25-06 Remington, .35 Whelen | 4 rounds |
| Magnum long action | 7mm Remington Magnum, .300 Winchester Magnum | 3 rounds |
Notice that short action isn't a single number — a .308/.243/6.5 Creedmoor magazine holds 4 (or 8 with the XT version), while the .223/.222 magazine holds 5, and the 450 Bushmaster magazine holds 3. Two magazines can both say "short action" and still hold a different number of rounds, because internal geometry is tuned to each cartridge, not just the action length.
Why the magnum body holds fewer rounds despite being longer
This isn't a manufacturing shortcut. Magnum cartridges like 7mm Remington Magnum and .300 Winchester Magnum carry a larger case head diameter and more body taper than standard long-action rounds. Magazine capacity is a function of how many cartridges stack side by side within the magazine's width, not how long the box is front to back — so even though the magnum body is the longest one Remington builds for the 783, each round takes up more lateral space and the stack tops out at 3.
Match caliber and action length, not just round count
If you're replacing a lost or damaged 783 magazine, order by the exact caliber stamped on the barrel. Two different magazines can both say "4-round" — a short-action .308 magazine and a long-action .270 magazine — and neither will seat correctly in the other's well. Capacity alone is never enough to confirm fit.
Matching capacity to how you hunt
A whitetail hunter working a 150-yard shooting lane from a stand rarely needs more than the standard factory magazine, since most shots resolve in one or two rounds and there's time to reload. A hunter running a magnum 783 for elk at longer range carries 3 rounds plus one chambered as standard practice, not a shortfall — many hunters carry a second loaded magazine rather than looking for a stretched capacity that doesn't exist in factory form. Varmint and predator hunters running the .223/.222 short action get the highest standard capacity on the platform at 5 rounds, or 8 with the XT short-action upgrade.
Magazine capacity rules vary by state. We don’t give legal advice — check your state before you order anything above standard factory capacity on our magazine capacity laws by state page.
Which magazine do you need?
- .308 Win / .243 Win / 6.5 Creedmoor (short action, 4 rounds): Remington 783 Short Action Magazine, or the 8-round XT version
- .222 / .223 Remington (short action, 5 rounds): Remington 783 Short Action .223 Magazine
- 450 Bushmaster (3 rounds): Remington 783 450 Bushmaster Magazine
- .30-06 / .270 Win / .25-06 Rem / .35 Whelen (long action, 4 rounds): Remington 783 Long Action Magazine
- 7mm Rem Mag / .300 Win Mag (magnum long action, 3 rounds): Remington 783 Magnum Long Action Magazine
- Browse everything: Remington 783 Magazines collection or the Remington 783 Magazine Guide
Frequently asked questions
What magazine capacity comes standard on a Remington 783?
It depends on caliber: 4 rounds for .308 Win/.243 Win/6.5 Creedmoor and for long-action calibers like .30-06 and .270 Win, 5 rounds for .223/.222 Remington, 3 rounds for 450 Bushmaster, and 3 rounds for magnum long-action calibers like 7mm Rem Mag and .300 Win Mag.
Why does the magnum magazine hold fewer rounds than the standard magazine?
Magnum cartridges have a larger case head diameter and more body taper, so each round takes up more lateral space in the stack — even though the magnum magazine body is the longest one built for the 783.
Can I use a short-action magazine in a long-action Remington 783?
No. Short, long, and magnum action lengths each use a magazine body sized for that cartridge family. Confirm your exact caliber against the product page before ordering.
Is there a higher-capacity option for the Remington 783 short action?
Yes — the ARM-783XT short-action magazine holds 8 rounds for .308 Win/.243 Win/6.5 Creedmoor rifles, up from the standard 4.
Is it legal to buy a higher-capacity magazine in my state?
Magazine capacity laws vary by state and we don't provide legal advice. Check our magazine capacity laws by state page and verify current law directly with your state before ordering.
Confirm the exact caliber on your barrel, order the magazine built for that chambering, and you'll have the correct capacity and a reliable feed the first time.
Buying for a shop, a range, or more than one rifle? See our wholesale purchasing terms for volume pricing.
