Age Verification Required

Are you 21 or older?

ZeroPoint Ammo sells ammunition and related products. You must be 21 years of age or older to enter this site and purchase our products.

Something went wrong. Please try again.

By entering this site you confirm you are of legal age to purchase ammunition in your jurisdiction and agree to our terms of use. This site is intended for lawful use by adults only.

.300 BLK • 220gr OTM

.300 Blackout Subsonic

Name: .300 Blackout Subsonic
Brand: ZeroPoint Ammo
Price: 104.00 USD
Availability: PreOrder

Suppressor-optimized subsonic load. Purpose-built for quiet cycling and hearing-safe performance.

1,050
Muzzle Velocity (fps)

538

Muzzle Energy (ft-lbs)

0.164

BC (G7)

200

Max Effective Range (yds)

Ballistics Data — 100yd Zero, Standard Metro, 10mph Full-Value Wind

Range (yds)	Velocity (fps)	Energy (ft-lbs)	Drop (in)	Drop (MOA)	Drop (MIL)	Wind 10mph (in)	Wind (MOA)	Wind (MIL)	TOF (s)
0	1,050	538	0.00	0.00	0.000	0.00	0.00	0.000	0.0000
25	979	468	4.11	15.70	4.565	0.00	0.01	0.004	0.0740
50	919	413	5.81	11.09	3.227	0.02	0.03	0.009	0.1530
75	863	363	4.63	5.89	1.714	0.04	0.05	0.014	0.2371
100	807	318	0.00	0.00	0.000	0.07	0.07	0.019	0.3268
125	752	276	-8.78	-6.71	-1.950	0.12	0.09	0.026	0.4230
150	697	238	-22.59	-14.39	-4.184	0.18	0.11	0.033	0.5263
175	643	202	-42.61	-23.26	-6.764	0.26	0.14	0.042	0.6381
200	588	169	-70.35	-33.60	-9.772	0.37	0.18	0.052	0.7598

Cartridge Specifications

Bullet TypeOTM

Bullet ManufacturerSierra MatchKing

Bullet Diameter0.308"

Bullet Length1.34"

Sectional Density0.331

BC (G7)0.164

BC (G1)0.343

Drag ModelG7

Case Length1.368"

Overall Length (OAL)2.26"

SAAMI Pressure55,000 psi

Muzzle Velocity1,050 fps

Test Barrel Length9"

Twist Rate1:8

Test Conditions59°F / 29.92" Hg / 0'

Frequently Asked Questions — .300 BLK

Can I get .300 BLK ammo delivered in Austin, TX?

Yes. ZeroPoint Ammo offers free weekly delivery of .300 BLK ammunition to subscribers throughout the greater Austin, Texas area. Your ammo arrives at your door every week — no shipping fees, no minimums beyond the 200-round lot size.

How does ZeroPoint's .300 BLK subscription work?

Choose your monthly round count in multiples of 200. We manufacture your .300 BLK rounds fresh at our Texas facility and deliver them free to your door every week. No contracts, no cancellation fees. Pause or cancel anytime. Learn how it works.

Is ZeroPoint .300 BLK ammo consistent lot to lot?

Absolutely. Every round is produced on premium automated presses with digital powder scales — delivering consistent charges, consistent lengths, and consistent velocity. When your ammo doesn't change, your zero doesn't move. That's the ZeroPoint difference.

Is this .300 BLK load safe for suppressed shooting?

Yes. This load is purpose-built for suppressed operation — subsonic velocity keeps the report below the sound barrier for hearing-safe performance. We use premium powders selected to minimize fouling, keeping your suppressor and action cleaner between sessions.

Choose Your Store

.300 Blackout Subsonic

Frequently Asked Questions — .300 BLK