Lyman Products Founder 'Mace' Thompson Passes Away

by
posted on April 10, 2021
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
lyman-products-mace-thompson-passing-f.jpg
James F. "Mace" Thompson, founder of Lyman Products and chairman of the company's board of directors until his death, passed away on April 3, 2021, following a long battle with cancer. He was 79 years old.

"During his career, Mace was a tremendous leader," a company statement read. "He was a maverick, a creative thinker and an innovator. He loved education and always took the opportunity to teach and mentor employees. He will be sorely missed, but his memory and legacy will live on with all that knew him."

Born on Dec. 22, 1941 in Philadelphia, Penn., Thompson earned a Bachelor of Science degree in Physics from St. Joseph's University. After graduation, he attended Harvard to complete his Master's in Business Administration. His first job was with Monsanto Corp. in Missouri, but after several years, he moved to Leisure Group and remained in the firearm industry for the rest of his career.

Leisure Group in the 1970s acted as the parent company for several prominent manufacturers at the time, including Sierra Bullets, High Standard Firearms and Lyman. Thompson was appointed president of the reloading products division in 1972, overseeing both Lyman and Sierra.

Under Thompson's leadership, in 1977, Lyman Products was purchased by a group of private investors and became a privately owned company. In the following decades, as president of the company, Thompson acquired a number of other brands and built Lyman Products into an industry giant. Acquisitions included Raytech in 1987; Pachmayr, TacStar, Trius Traps, A-Zoom Training Rounds and Butch's Gun Care in 1996 and Mark 7 Reloading in 2019.

Thompson was a lifetime member of the National Rifle Association. He is survived by his wife, Pam, his sisters Helen, Dolores and Marie and 27 nieces and nephews.

Latest

001 HP15CC W Cover 01
001 HP15CC W Cover 01

Review: Hi-Point HP-15 Carbine

In 2025, Hi-Point Firearms surprised the firearm community with the news that it would offer a complete line of HP-15 carbines and pistols. Since then, the company has expanded their offerings.

New for 2026: Springfield Armory Saint Victor .300 BLK 9.5” Pistol

Springfield Armory’s Saint Victor family now has a pistol in .300 BLK.

Preview: Lee Precision 7 mm Backcountry Reloading Dies

Lee Precision is now backing Federal’s 7 mm Backcountry cartridge with an all-inclusive kit, along with load data to reload once-fired Federal Premium cases.

Rimfire Resurgence Trend?

With suppressor sales booming, are shooters rediscovering their love of rimfire firearms?

New for 2026: Mossberg 990 Magpul and 990 SPX Aftershock

Mossberg steps up its 990 game with a new Magpul shotgun and SPX firearm.

New for 2026: Gemtech Nebula 5.7 Direct-Thread Suppressor

Gemtech’s Nebula is a 5.7x28 mm-specific sound suppressor.

Interests



Get the best of American Rifleman delivered to your inbox.