Choosing the Right Magazine Spring for Your Remington 783: A Guide to Ensuring Reliable Performance

If your Remington 783 short-strokes on the third or fourth round, sits fine at the range bench but fails in the field, or the top round noses down instead of feeding straight, a fatigued magazine spring is the most likely cause. ARM doesn't sell 783 magazine springs as a standalone part - we manufacture complete factory-pattern magazines, spring, follower, and feed lips built and matched together. This guide walks through how to tell the spring is the problem, then how to get a correct replacement magazine instead of chasing a generic part that doesn't exist for this rifle.

Why magazine springs fail before anything else does

Every other part in a rifle's feeding system is static most of the time. The magazine spring is the one component under constant load every second a round sits in the magazine, which is why it fails first and fails quietest. Steel under sustained compression relaxes over time in a process called spring set - the coil loses some of its original force and never fully recovers, even after you unload it. Heat and cold cycling accelerates the same fatigue: a magazine that goes from a warm truck cab to a cold morning and back, day after day, ages faster than one kept at steady room temperature.

Treat the spring as a wear part, the same way you'd treat a recoil spring on a semi-auto, and don't wait for a catastrophic jam to think about it.

How the Remington 783 magazine feeds

The 783 uses a detachable box magazine. The spring has to maintain enough upward force to push the top round into the feed lips at a consistent angle, cycle after cycle, without letting the stack twist or bind. A spring that's even slightly under-tensioned lets the top round tip forward under recoil - the nose-down failure-to-feed pattern that's most common in the field.

Factory 783 magazines ship in 3-round (magnum long action), 4-round (short action and long action), and 5-round (.223/.222 short action) capacities depending on caliber, and each capacity uses a spring wound and matched to that specific magazine body. That's exactly why an aftermarket spring built for a different capacity or caliber won't deliver even pressure across the stack - and why ARM builds the spring into the complete magazine rather than selling it separately.

Signs your Remington 783 magazine spring is wearing out

• Failure to feed on the last 1-2 rounds - the spring has enough force for a full stack but sags once fewer rounds compress it
• Double feeds during rapid cycling - inconsistent upward pressure lets two rounds rise toward the feed lips at once
• Rounds sitting nose-down instead of nose-up - a sign of lost tension in the coil
• Magazine loads easily but the round doesn't reach the feed lips under thumb pressure

A simple 48-hour load test: load the magazine fully, let it sit two days, then check whether the top round still sits flush against the feed lips. If it's noticeably lower than when you loaded it, the spring has taken a permanent set.

Short action vs. long action vs. magnum: not interchangeable

Short-action 783 magazines, built for .308 Winchester, .243 Winchester, and 6.5 Creedmoor, use a shorter overall body matched to a shorter cartridge. Long-action magazines, built for .270 Winchester and .30-06 Springfield, use a longer body. Magnum long-action magazines, built for 7mm Remington Magnum and .300 Winchester Magnum, are the longest body on the platform but hold only 3 rounds. Confirm your action length and exact caliber off the barrel marking before ordering - see our comparison in Remington 783 Magnum vs Long-Action Magazine Length.

Replacing a worn magazine

Once you've confirmed the spring or follower is the cause - feeding is inconsistent specifically on the last round or two, and the magazine body, feed lips, and catch are otherwise undamaged - order the correct factory-pattern replacement for your exact caliber and action length. Every ARM magazine ships complete and ready to load; there's no separate spring kit to source or install.

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
• .270 Win / .30-06 Springfield / .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

Does ARM sell a replacement spring for the Remington 783 magazine?

No - we manufacture complete factory-pattern magazines with the spring, follower, and feed lips built and matched together, not standalone springs. If your magazine spring is worn, the replacement is the full magazine.

How do I know if my Remington 783 magazine spring is worn?

Watch for failure to feed on the last 1-2 rounds, double feeds during rapid cycling, or rounds sitting nose-down. A 48-hour load test - load fully, wait two days, check if the top round has sunk - is a reliable diagnostic.

Can I use a short-action spring in a long-action magazine?

No. ARM magazines ship as complete, matched units per caliber and action length - short, long, and magnum long action bodies are not interchangeable parts.

How long does a Remington 783 magazine spring typically last?

It depends heavily on storage and use - magazines stored loaded for years fatigue faster than ones cycled and stored at reduced capacity. Treat it as a wear item and inspect feeding at the range each season.

What's the difference between short action, long action, and magnum long action springs?

Each is wound to a different free length and force curve to match that magazine body's compressed height and cartridge weight - see our guide on Remington 783 magnum vs long-action magazine length for the full breakdown.

If your diagnosis points to a worn spring or follower, order the complete factory-pattern magazine for your exact caliber and action length - it's the only way ARM ships this part, and it means you're getting a matched spring, follower, and feed lips together.

Buying for a shop, a range, or more than one rifle? See our wholesale purchasing terms for volume pricing.