The 8.6 Blackout 300gr ammo built around the Berger Hybrid OTM is a precision subsonic load for shooters who put accuracy first. Designated bolt action only, it’s topped with Berger’s 300‑grain Hybrid Open Tip Match bullet — one of the most respected target projectiles made — and loaded to wring every bit of consistency out of the heavy‑subsonic 8.6 platform. If your goal is the tightest possible groups from a suppressed bolt gun, this is the load to reach for.
Specifications
| Caliber | 8.6 Blackout (.338) |
| Bullet weight | 300gr |
| Projectile | Berger 300gr Hybrid OTM (Open Tip Match) Tactical |
| Type | Subsonic — match / precision |
| Platform | Bolt action only |
| Muzzle velocity | ~1,000 FPS (subsonic) |
| Quantity | 20-round box |
The Berger 300gr Hybrid OTM bullet
Berger’s Hybrid design is what sets this 8.6 Blackout 300gr ammo apart. The “hybrid” ogive blends tangent and secant profiles to combine easy tuning with the high ballistic efficiency precision shooters chase, and the Open Tip Match (OTM) construction is built for uniformity and consistency rather than expansion. At 300 grains it’s a long, heavy, beautifully balanced bullet that the cartridge’s fast twist stabilizes superbly — and that rewards a quality rifle with genuinely tight groups.
Why it’s bolt-action only
This load is designated bolt action only, and that distinction matters. It’s tuned for the consistency and overall length that a bolt gun handles best, without the compromises of feeding and cycling through a gas system. Running it in a bolt‑action 8.6 Blackout — a Remington 700 or similar prefit build — lets the load and the platform deliver their full accuracy potential. If you shoot a semi‑auto AR‑10, choose a load specified for gas guns instead.
Quiet precision
Like all subsonic 8.6 ammo, this load stays below the speed of sound, so suppressed it produces no sonic crack and is exceptionally quiet. Pair that quiet with a true match bullet and you get something special: a near‑silent rifle that still prints tight groups. It’s ideal for precision practice, load confirmation and quiet range work where you want to see exactly what your rifle and suppressor are capable of. To understand how subsonic ballistics behave, see our 8.6 Blackout ballistics guide.
What it’s best for — and an honest note
This 8.6 Blackout 300gr ammo is a precision and target load first. An OTM match bullet is engineered for accuracy, not for the controlled expansion a hunting bullet provides — so while it’s superb for groups and quiet practice, for hogs and deer you should choose a purpose‑built expanding load like a fracturing or Barnes‑style projectile. Matching the bullet to the task is the mark of a knowledgeable shooter.
Rifle and suppressor pairing
Run this in a properly chambered bolt‑action 8.6 Blackout with the fast 1:3‑class twist the cartridge requires, and pair it with a quality .338‑rated suppressor for the full quiet‑precision experience. Confirm a dedicated zero, and let the barrel settle between groups when testing for accuracy. You’ll find suppressors and precision accessories at our sister store, blackoutammo.shop.
How the fast twist unlocks accuracy
The Berger 300gr Hybrid OTM is a long, heavy bullet, and long bullets demand a fast twist to stabilize, especially at subsonic velocity. The 1:3-class twist that defines 8.6 Blackout barrels is exactly what this projectile needs, spinning it fast enough to fly true and group tightly. That pairing of a benchmark match bullet with a barrel built to stabilize it is why this load can deliver precision that surprises shooters used to thinking of subsonic ammo as a compromise.
When the rifle, twist and bullet are all matched, the accuracy is genuinely there to be had.
Getting started with this load
Offered as a 20-round box, this is an easy way to see what your bolt gun can do with a true match bullet before committing further. Sight in carefully, let the barrel settle between groups, and record your subsonic zero separately from any other load you shoot.
If precision is your priority and you want the quietest accurate setup possible, this 8.6 Blackout 300gr Berger load belongs on your shortlist. Explore the rest of the lineup in our 8.6 Blackout collection to round out your ammo locker.
Why buy from Blackout Ammunition
We carry genuine, in‑stock 8.6 Blackout ammunition and ship fast to lawful destinations nationwide. Whether you want this Berger match load for precision work or a hunting bullet for the field, we can point you to the right round — browse the full 8.6 Blackout ammo collection, review shipping & delivery, and see the FAQ. For load comparisons, our 8.6 Blackout vs 300 Blackout guide is a useful read.
Frequently asked questions
Why is this load bolt action only?
It’s tuned for the consistency and overall length a bolt gun handles best. For semi‑auto AR‑10s, choose a load specified for gas guns.
Is the Berger Hybrid OTM a hunting bullet?
No — OTM (Open Tip Match) bullets are built for accuracy, not expansion. Use a purpose‑built expanding load for hunting.
How accurate is it?
Very — the Berger Hybrid is a benchmark match bullet, and from a quality bolt gun this load is built to print tight groups.
Is it quiet?
Yes. As a subsonic load it produces no sonic crack and is exceptionally quiet through a suppressor.
If precision is your priority, few subsonic loads in any caliber match what this Berger-topped 8.6 Blackout 300gr round can do from a quality bolt gun. Order yours and discover how tight a suppressed rifle can really shoot when the bullet, twist and barrel are all working together.
You must be 21 or older to purchase rifle ammunition. All ammunition ships via ground to lawful destinations only; it is the buyer’s responsibility to comply with all federal, state and local laws.
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