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The Range
Ammo & Reloading
Lightest subsonic bullet for 7.5” suppressed .300 Blackout
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<blockquote data-quote="Profreedomokie" data-source="post: 3892409" data-attributes="member: 524"><p>I have a 300 Whisper I built about 20 years ago for subsonics. Like swampratt mentioned its a big difference on how to load if you're using a semiautomatic rifle. My AR is using a 9mm recoil spring with a buffer weight that is empty. It is set up this way to function with bullets as light as 165 grains. You may have to pick the bullet weight and style you want and keep playing with the powder charge until you get a load that will function 100% of the time. To be really quiet stay around 1050 fps. When I shoot mine all I hear is the spring. I have no idea on what factory ammo on the shelf may work for you. Reloading would be your best bet.</p></blockquote><p></p>
[QUOTE="Profreedomokie, post: 3892409, member: 524"] I have a 300 Whisper I built about 20 years ago for subsonics. Like swampratt mentioned its a big difference on how to load if you're using a semiautomatic rifle. My AR is using a 9mm recoil spring with a buffer weight that is empty. It is set up this way to function with bullets as light as 165 grains. You may have to pick the bullet weight and style you want and keep playing with the powder charge until you get a load that will function 100% of the time. To be really quiet stay around 1050 fps. When I shoot mine all I hear is the spring. I have no idea on what factory ammo on the shelf may work for you. Reloading would be your best bet. [/QUOTE]
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Lightest subsonic bullet for 7.5” suppressed .300 Blackout
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