300 Blackout 205gr Solid Copper Subsonic Expanding Projectiles (Qty 50)

What this is

This is the 300 Blackout 205gr Solid Copper Subsonic Expanding Projectiles (Qty 50).

This is the 205gr solid copper subsonic expanding projectile for 300 Blackout, built to mushroom reliably at the reduced velocity a quiet, suppressed subsonic load produces.

Why subsonic needs a different design

A standard expanding bullet relies on impact velocity to drive the mushrooming action, and at subsonic speed, below roughly 1125 fps, a design built for full-power impact often fails to open reliably. This 205gr is engineered specifically around that lower velocity band, with a hollow-point geometry tuned to expand at subsonic speed rather than assuming a supersonic impact.

Expanding versus our subsonic fracturing option

We also stock a 196gr subsonic fracturing design in this caliber, built to fragment on impact rather than expand as a single mass. Choose this 205gr expanding option where more penetration matters, and the 196gr fracturing option where rapid energy transfer matters more.

Frequently asked questions

Why is this heavier than the supersonic 115/125gr options? At 205gr this is built to run subsonic, under roughly 1125 fps, where a heavier bullet retains more energy and momentum than a lighter one would at the same reduced speed.

Expanding or fracturing, which should I pick? This 205gr design mushrooms as a single expanded mass on impact. We also stock a 196gr subsonic fracturing design that fragments instead; pick expanding for more penetration, fracturing for faster energy transfer.

Will this expand reliably at subsonic velocity? Yes, this is specifically a subsonic-rated expanding design, engineered to mushroom at the lower impact velocity a subsonic load produces, unlike a standard supersonic-rated expanding bullet which may not open at reduced speed.

Related reading: 8.6 Blackout ammunition, 300 Blackout ammunition, or the ballistics calculator. Reference: SAAMI pressure and dimensional standards.

{“@context”:”https://schema.org”,”@type”:”FAQPage”,”mainEntity”:[{“@type”:”Question”,”name”:”Why is this heavier than the supersonic 115/125gr options?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”At 205gr this is built to run subsonic, under roughly 1125 fps, where a heavier bullet retains more energy and momentum than a lighter one would at the same reduced speed.”}},{“@type”:”Question”,”name”:”Expanding or fracturing, which should I pick?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”This 205gr design mushrooms as a single expanded mass on impact. We also stock a 196gr subsonic fracturing design that fragments instead; pick expanding for more penetration, fracturing for faster energy transfer.”}},{“@type”:”Question”,”name”:”Will this expand reliably at subsonic velocity?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”Yes, this is specifically a subsonic-rated expanding design, engineered to mushroom at the lower impact velocity a subsonic load produces, unlike a standard supersonic-rated expanding bullet which may not open at reduced speed.”}}]}