Magtech
.300 Blackout 200gr FMJ
1,017 fps published muzzle velocity, below the speed of sound.
Sound travels at about 1,050 fps on a freezing morning and about 1,150 fps on a hot afternoon.
The maker does not say what barrel this was measured from, so treat it as a guide rather than an exact figure for your gun.
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OpticsPlanet
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$50.46
MSRP
Price on file from OpticsPlanet, updated nightly. We may earn a commission · disclosure
- 1,017 fps
- Velocity · published
- 200 gr
- Bullet
- Brass
- Case
- 50 rounds
- Box
- $0.900
- Per round
Specifications
- Cartridge
- .300 Blackout
- Part number
- 300BLKSUBA
- UPC (barcode)
- 754908210510
- Bullet
- FMJ
- Bullet weight
- 200 grains
- Case material
- Brass
- Pressure
- Standard
- Primer
- Centerfire
- Rounds per box
- 50
- Intended use
- Self-Defense, Big Game, Deer, Predator
About .300 Blackout
Heavy subsonic bullets (190gr and up) need a fast twist to stabilise. A 1:8 or faster barrel is the usual recommendation; a slow-twist barrel can keyhole them.
Subsonic .300 Blackout often will not cycle a semi-automatic without a suppressor or an adjustable gas block.