One Shot Precision
One Shot Precision
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About Us

One Shot Precision is a veteran-owned company dedicated to engineering high-performance projectiles with unmatched accuracy, reliability, and consistency.

One Shot Precision is a veteran-owned company dedicated to engineering high-performance, lead-free projectiles with unmatched accuracy, reliability, and consistency. Proudly made in the USA, our 90-grain terminal defense projectile line is precision-machined from solid brass to ensure exceptional dimensional uniformity and performance. Featuring a patent-pending hollow point design, OSP projectiles deliver deep penetration which create devastating wound channels - making them a highly effective choice for personal defense. Additionally, our solid brass construction eliminates lead contamination, offering a safer, more environmentally responsible solution. At One Shot Precision, our mission is simple: to deliver the most advanced projectiles on the marker. So, whether you need range ammo, defensive ammo, or hunting ammo, we have a projectile for you. 


You demand the best from your ammunition, so we demand the best from our projectiles.

John Schuld

CPO & Founder of One Shot Precision


John M. Schuld brings over 30 years of hands-on experience in Swiss CNC machining and is a recognized leader in the precision manufacturing industry. With deep technical expertise and a customer-first mindset, John has built a career around helping manufacturers increase efficiency, reduce downtime, and stay competitive through advanced machining solutions.

He holds a Bachelor of Science in Manufacturing Engineering (BSME) from Arizona State University's Ira A. Fulton Schools of Engineering, where he developed the strong technical foundation that drives his work today. Coming from a family with generations of manufacturing experience, John has a lifelong passion for the industry. Through his companies, he continues to support manufacturers across North America by providing innovative, reliable, and results-driven solutions tailored to the needs of modern production environments. Outside of work, John enjoys spending time with his children and staying active through fishing, golfing, and mountain biking.

Tim Morrissey Jr.

COO & Founder of One Shot Precison


A 2003 graduate of Trinity College with a B.A. in Political Science, Tim has extensive overseas experience. From 2004 – 2008, he served as a Scout/Sniper and sniper team leader in the United States Marine Corps, deploying twice to Iraq. From 2009 – 2014, and again from 2018-2021, Tim worked as a Protective Security Specialist / Designated Defensive Marksman for Triple Canopy and Academy, Inc., providing High Threat Protection for U.S. State Department personnel in Iraq and Afghanistan. In 2020, he received his MBA from Western Governors University, and since that time, he has been involved in several start-ups. When he is not working, he enjoys spending time with his family, golfing, and flying.

Mark Simonetti

CTO & Founder of One Shot Precision


Mark is a veteran of the United States army and a second generation engineer. He served in Operation Just Cause and Operation Desert Shield/Desert Storm. After leaving the Army, Mark served as a police officer in Fairfield County for 20 years. As the department armorer, he was assigned to review and solve the problem of repeated weapon malfunctions. Throughout this time, Mark noticed a need for change in ballistics. He began focusing on the material makeup, performance, and design of ballistics. With that, the One Shot Precision Terminal Defense Line was created. Mark is an inventor, patent holder, and founder.

Chris Barcello Sr.

CEO & Founder of One Shot Precision


Chris Barcello Sr. has been an entrepreneur his entire life. As the 11th of 12 children, Chris began his self-employment journey relatively young; cutting grass, delivering newspapers, shoveling snow or any work a neighbor needed. After putting himself through the Stamford Catholic School System, he attended several semesters at Southern CT State University where he majored in Accounting. Utilizing that knowledge, Chris solely built, operated, and lead 3 companies, 2 of which are still operational and 5 star rated. When presented with the opportunity to expand into manufacturing and work with 3 talented partners, he immediately jumped in. Since starting with One Shot Precision, he has secured a FFL6 and built OSP's first manufacturing plant in CT. In his free time Chris is with his family enjoying life, playing poker or golf with his friends, and his favorite solo hobby…cutting his lawn. 

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