Description

Buy Remington Small Pistol Primers #5-1/2

Remington Small Pistol Primers, model #5-1/2, are in stock now at Primers Reloading. These are Remington’s magnum small pistol primer, built with the same components Remington uses in its own factory ammunition, giving you a dependable, hotter-burning primer for magnum handgun loads.

What is the #5-1/2 primer?

The #5-1/2 is Remington’s small pistol magnum primer. Despite the number-based name instead of the word “magnum,” it’s built specifically for higher-pressure pistol loads, using a flatter cup and a priming mix formulated for more aggressive, complete ignition compared to Remington’s standard small pistol primer (the #1-1/2).

Every #5-1/2 primer is built with a group of subcomponents assembled to tight tolerances, with primer cup dimensions controlled to four decimal places and a priming mix formulated for consistent ignition across a wide range of powder types. Remington tests these primers for reliability from -20°F to +150°F, so performance stays steady whether you’re loading in summer heat or winter cold.

Why choose a magnum primer like the #5-1/2

• Higher-pressure loads – Built to withstand and ignite the increased powder charges used in magnum cartridges.
• More complete ignition – A more aggressive spark helps burn powder fully and evenly, which matters for magnum-level pressures.
• Cold-weather reliability – The stronger ignition helps maintain consistent performance in colder conditions where standard primers can be less reliable.

Safety note: use a magnum primer only when your specific load data calls for one. The #5-1/2 is not a drop-in replacement for a standard small pistol primer, since it’s formulated for different pressure conditions.

Which cartridges use this primer?

The #5-1/2 is most commonly used in:

• .357 Magnum
• Other high-pressure small pistol cartridges, when specifically listed in load data

Always check your reloading manual or published load data to confirm your cartridge and powder combination calls for the #5-1/2 rather than a standard small pistol primer.

Available quantities

• 100 count – A box-sized option for smaller batches.
• 1,000 count (10 trays of 100, sold as a brick) – The standard bulk option most reloaders choose.
• 5,000 count (case) – Best value for high-volume reloaders.

Why buy Remington #5-1/2 primers from Primers Reloading

• Factory-grade components – The same primers Remington uses in its own ammunition production.
• Tripod anvil design – Creates a larger sensitive area, helping ensure reliable ignition even with off-center firing pin strikes.
• In stock and ready to ship – No long waits or backorders.

Shipping information

Like all primers, the #5-1/2 is classified as a hazardous material for shipping:

• Ground shipping only — never by air.
• Shipped separately from non-hazmat items in most cases.
• Requires an adult signature (21+) upon delivery.
• Some states and localities may have additional shipping restrictions.

We handle the compliance details on our end — just place your order and be ready to sign for it.

Frequently Asked Questions

What’s the difference between the Remington #1-1/2 and #5-1/2?
The #1-1/2 is a standard small pistol primer built for typical loads, while the #5-1/2 is the magnum version, designed with a more aggressive ignition for higher-pressure loads like .357 Magnum.

Is the #5-1/2 labeled as “magnum” on the box?
Not always by name, but it functions as Remington’s small pistol magnum primer and should be used the same way — only when your load data specifically calls for a magnum primer.

What calibers use the Remington #5-1/2?
It’s most commonly used for .357 Magnum and other high-pressure small pistol loads.

What quantities are available?
The #5-1/2 is sold in 100-count boxes, 1,000-count bricks, and 5,000-count cases.

Can this primer be shipped to my state?
Most states allow direct shipping, but some states and cities have additional restrictions. Check our shipping policy or contact us before ordering if you’re unsure.

Does temperature affect how this primer performs?
Remington tests the #5-1/2 for reliability across a wide temperature range, from -20°F to +150°F, so it’s built to perform consistently in both hot and cold conditions.