Hornady Subsonic 300 Blackout 190gr Sub-X
Hornady's 190gr Sub-X holds a best-in-class position for suppressed range work because it pairs a purpose-built heavy subsonic bullet with Hornady's tight quality control, delivering very consistent velocities and reliable feeding in bulk packs. Compared with cheaper full-metal-jacket options on this list it is pricier per round but offers superior terminal consistency and reduced signatures that make it worthwhile for precision suppressed training and forensic-consistent drills.
Subsonic expansion
190gr momentum
Subsonic expansion
190gr momentum
Review Summary
"Users praise the Hornady Sub-X 190gr subsonic for excellent accuracy, consistent performance, and reliable suppressed operation; common complaints are the premium price and occasional picky feeding in non-optimized platforms."
Whispering wrecking-ball
190-grain subsonic load tuned for 300 Blackout reliability and suppressed shooting.
Whispering wrecking-ball
190-grain subsonic load tuned for 300 Blackout reliability and suppressed shooting.
Recreational Enjoyment
Skill Development & Mastery
Hornady's 190gr Sub-X holds a best-in-class position for suppressed range work because it pairs a purpose-built heavy subsonic bullet with Hornady's tight quality control, delivering very consistent velocities and reliable feeding in bulk packs. Compared with cheaper full-metal-jacket options on this list it is pricier per round but offers superior terminal consistency and reduced signatures that make it worthwhile for precision suppressed training and forensic-consistent drills.
Subsonic expansion
190gr momentum
Whispering wrecking-ball
190-grain subsonic load tuned for 300 Blackout reliability and suppressed shooting.
Hornady's Sub-X lineup emphasizes consistent velocities and reliable feeding in AR platforms.
Subsonic expansion
190gr momentum
Whispering wrecking-ball
190-grain subsonic load tuned for 300 Blackout reliability and suppressed shooting.
Hornady's Sub-X lineup emphasizes consistent velocities and reliable feeding in AR platforms.
$150-240 CAD
Federal American Eagle 300 Blackout 220gr OTM Subsonic
Federal's American Eagle 220gr OTM is a market-leader for match-oriented subsonic training, offering a heavy, stable profile and OTM design that improves accuracy at subsonic velocities compared with standard FMJ training rounds. It sits between premium projectiles like Hornady and budget FMJ brands by delivering better downrange performance and consistency for precision drills while costing more than bulk FMJ but less than boutique match lines.
Match-grade consistency
220gr authority
Match-grade consistency
220gr authority
Review Summary
"Shooters find the Federal American Eagle 220gr OTM subsonic to be a reliable, accurate, and good-value option for range and suppressed use, with generally smooth feeding; a minority report slightly less precision than match-grade loads."
Silent scalpel
220-grain OTM design provides heavy, subsonic performance ideal for suppressed 300 Blackout use.
Silent scalpel
220-grain OTM design provides heavy, subsonic performance ideal for suppressed 300 Blackout use.
Recreational Enjoyment
Skill Development & Mastery
Federal's American Eagle 220gr OTM is a market-leader for match-oriented subsonic training, offering a heavy, stable profile and OTM design that improves accuracy at subsonic velocities compared with standard FMJ training rounds. It sits between premium projectiles like Hornady and budget FMJ brands by delivering better downrange performance and consistency for precision drills while costing more than bulk FMJ but less than boutique match lines.
Match-grade consistency
220gr authority
Silent scalpel
220-grain OTM design provides heavy, subsonic performance ideal for suppressed 300 Blackout use.
Federal American Eagle ammunition is made for consistent accuracy and dependable cycling.
Match-grade consistency
220gr authority
Silent scalpel
220-grain OTM design provides heavy, subsonic performance ideal for suppressed 300 Blackout use.
Federal American Eagle ammunition is made for consistent accuracy and dependable cycling.
$130-200 CAD
Sellier & Bellot 300 AAC Blackout 200gr FMJ Subsonic
Sellier & Bellot’s 200gr FMJ is a market leader for bulk-pack, full-metal-jacket centerfire subsonic range ammunition due to excellent value and broad availability; it provides predictable feeding and terminal behavior for high-volume practice. Compared with the premium and match-focused rounds above, S&B is the most cost-effective option for large-scale training and suppression familiarization while still maintaining respectable consistency for centerfire FMJ work.
Budget bulk
200gr stability
Budget bulk
200gr stability
Review Summary
"Sellier & Bellot 200gr FMJ subsonic is frequently cited as a budget-friendly, consistent performer with acceptable accuracy for range use, though some buyers note occasional cosmetic defects or primer/crimp variability."
Euro-robust zing
200-grain FMJ offering economical, consistent shots for routine range work in 300 Blackout.
Euro-robust zing
200-grain FMJ offering economical, consistent shots for routine range work in 300 Blackout.
Recreational Enjoyment
Time-Saving Convenience
Sellier & Bellot’s 200gr FMJ is a market leader for bulk-pack, full-metal-jacket centerfire subsonic range ammunition due to excellent value and broad availability; it provides predictable feeding and terminal behavior for high-volume practice. Compared with the premium and match-focused rounds above, S&B is the most cost-effective option for large-scale training and suppression familiarization while still maintaining respectable consistency for centerfire FMJ work.
Budget bulk
200gr stability
Euro-robust zing
200-grain FMJ offering economical, consistent shots for routine range work in 300 Blackout.
Sellier & Bellot is known for budget-friendly, reliable production and consistent lot-to-lot performance.
Budget bulk
200gr stability
Euro-robust zing
200-grain FMJ offering economical, consistent shots for routine range work in 300 Blackout.
Sellier & Bellot is known for budget-friendly, reliable production and consistent lot-to-lot performance.
$110-170 CAD
Winchester USA 300 Blackout 200gr Open Tip Subsonic
Winchester USA’s 200gr open-tip subsonic load occupies a middle ground by offering better ballistic uniformity and potential accuracy advantages over FMJ bulk rounds while remaining more affordable than specialty match offerings. For bulk-pack training this round is a solid compromise—more precise than budget FMJs like Aguila or S&B, but usually available at a lower price point per round than premium match-grade substitutes.
US-made reliability
200gr balance
US-made reliability
200gr balance
Review Summary
"Winchester USA 200gr open-tip subsonic earns praise for reliable feeding, solid accuracy, and consistent factory quality; most users are satisfied, but some consider it costlier than imported alternatives."
Stars-and-stripes steady
200-grain open-tip configuration aimed at improved ballistic consistency and tighter groups.
Stars-and-stripes steady
200-grain open-tip configuration aimed at improved ballistic consistency and tighter groups.
Recreational Enjoyment
Skill Development & Mastery
Winchester USA’s 200gr open-tip subsonic load occupies a middle ground by offering better ballistic uniformity and potential accuracy advantages over FMJ bulk rounds while remaining more affordable than specialty match offerings. For bulk-pack training this round is a solid compromise—more precise than budget FMJs like Aguila or S&B, but usually available at a lower price point per round than premium match-grade substitutes.
US-made reliability
200gr balance
Stars-and-stripes steady
200-grain open-tip configuration aimed at improved ballistic consistency and tighter groups.
Winchester USA loads are manufactured to SAAMI specifications for dependable function in service rifles.
US-made reliability
200gr balance
Stars-and-stripes steady
200-grain open-tip configuration aimed at improved ballistic consistency and tighter groups.
Winchester USA loads are manufactured to SAAMI specifications for dependable function in service rifles.
$140-220 CAD
Aguila 300 Blackout 150gr FMJ Subsonic
Aguila’s 150gr FMJ is positioned as the budget-friendly bulk option for centerfire range use, giving shooters a very low per-round cost for high-volume drills and target work. While lighter than the typical subsonic 190–220gr projectiles on this list and therefore offering a different ballistic profile, Aguila remains attractive for economical practice where strict subsonic performance and premium terminal consistency are less critical.
Lightweight speed
Clean cycling
Lightweight speed
Clean cycling
Review Summary
"Aguila 150gr FMJ subsonic is commonly chosen for value and availability and performs adequately for casual range use, but reviewers report more variability in velocity and occasional feeding or quality issues compared with premium brands."
Pocket-sized thunder
150-grain FMJ option with reduced recoil and lower per-round cost for high-volume practice.
Pocket-sized thunder
150-grain FMJ option with reduced recoil and lower per-round cost for high-volume practice.
Recreational Enjoyment
Time-Saving Convenience
Aguila’s 150gr FMJ is positioned as the budget-friendly bulk option for centerfire range use, giving shooters a very low per-round cost for high-volume drills and target work. While lighter than the typical subsonic 190–220gr projectiles on this list and therefore offering a different ballistic profile, Aguila remains attractive for economical practice where strict subsonic performance and premium terminal consistency are less critical.
Lightweight speed
Clean cycling
Pocket-sized thunder
150-grain FMJ option with reduced recoil and lower per-round cost for high-volume practice.
Aguila products are typically value-oriented and suitable for inexpensive range training.
Lightweight speed
Clean cycling
Pocket-sized thunder
150-grain FMJ option with reduced recoil and lower per-round cost for high-volume practice.
Aguila products are typically value-oriented and suitable for inexpensive range training.
$90-150 CAD