Federal Premium Gold Medal Large Pistol Magnum Match Primers #155M Box of 1000 (10 Trays of 100)

Clear Product Overview

The federal premium gold medal large pistol magnum match primers 155m 1000-count brick (packaged as ten 100-count trays) represents the peak of primer precision for heavy magnum handgun cartridges and high-pressure competition loads. Manufactured under strict, match-grade quality control tolerances, the #155M utilizes specially selected chemical formulations and ultra-consistent cup dimensions. These primers deliver an intense, uniform flame tailored to ignite slow-burning magnum pistol powders cleanly and reliably in large-capacity handgun cases.

Relevant Specifications

• Brand: Federal Premium

• Product Line: Gold Medal Match Primers

• Part Number: P155M / Gold Medal #155M

• Primer Size: Large Pistol Magnum Match (#155M Specification)

• Quantity: 1,000 Primers (10 Plastic Trays of 100 Primers Each)

• Chemical Mix: Match-Grade, Non-Corrosive, Non-Mercuric Formulation

• Cup Construction: Soft Brass Alloy for Uniform Seating and Sensitivity

• Intended Cartridges: Magnum Handgun Rounds (.44 Magnum, .357 Magnum, .454 Casull, .500 S&W Magnum, .460 S&W, .45 Colt High-Pressure)

• Country of Origin: Made in the USA

Real-World Use Information

Competitive handgunners and magnum revolversmiths rely on federal premium gold medal large pistol magnum match primers 155m to minimize extreme velocity spread (ES) and standard deviation (SD). Slow-burning ball and extruded powders commonly used in magnum handgun loads (such as H110, W296, and 2400) require a hotter, longer-lasting primer flame for complete combustion. The #155M provides the precise thermal output needed to ensure uniform pressure spikes, reducing muzzle flash variance and tightening downrange shot groups in steel challenge, silhouette, and long-range hunting handguns.

Compatibility & Requirements

• Cartridge Compatibility: Engineered specifically for large-capacity, high-pressure magnum handgun cartridges including .44 Remington Magnum, .454 Casull, .480 Ruger, .500 S&W Magnum, and high-pressure .45 Colt handloads.

• Powder Recommendation: Best paired with hard-to-ignite magnum pistol propellants (H110, Winchester 296, Alliant 2400, Accurate No. 9, I4227).

• Tool Compatibility: Fits all standard hand-held, bench-mounted, and progressive priming equipment. Federal cups are known for superior sensitivity; ensure seating depth is set smoothly without excessive force.

Pros & Limitations

Pros:

• Match-Grade Tolerances: Stringent quality checks ensure micro-gram consistency in priming compound weight for shot-to-shot uniformity.

• Magnum Spark Energy: Guarantees rapid, reliable ignition of slow-burning ball powders even in sub-zero hunting conditions.

• Sensitive Primer Cup: Soft cup construction ensures positive detonation under varying hammer-fall weights and lightened competition triggers.

• Non-Corrosive Chemistry: Protects custom handgun barrels, cylinder chambers, and firing pin channels from chemical corrosion.

Limitations:

• Specific Application: Too energetic for standard, non-magnum large pistol loads (e.g., standard pressure .45 ACP or .44 Special), where standard #150 or #150M primers are recommended.

• Availability: Match-grade magnum primers are produced in limited production batches and sell out quickly.

Frequently Asked Questions (FAQs)

Q: What is the difference between Federal #150M and Federal #155M Gold Medal primers?

A: Federal #150M primers are standard-intensity Large Pistol Match primers, whereas #155M primers are Magnum-intensity Match primers designed with a hotter spark to ignite heavy charges of slow-burning powders.

Q: Can I use Federal #155M primers in .44 Magnum reloading?

A: Yes. The #155M is specifically designed for .44 Magnum and similar large-capacity magnum pistol cases, especially when loading hard-to-ignite powders like H110 or W296.

Q: Are Federal Gold Medal primers non-corrosive?

A: Yes. All Federal Gold Medal Match primers utilize modern non-corrosive and non-mercuric priming mixtures that protect your firearm’s action and bore.

Shipping & Delivery Information

• HazMat Classification: Shipped as Hazardous Material (UN0044, Primers, cap type) in compliance with DOT regulations.

• Shipping Restrictions: Ships via ground transport within the Continental United States only. Cannot ship to P.O. Boxes, APO/FPO addresses, or internationally.

• Adult Signature Required: Delivery requires an adult signature upon arrival.

• Final Sale: Due to federal safety and hazardous material shipping regulations, all primer sales are final and non-returnable.

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