.300 Whisper subsonic out of a 7" barrel

[avenger15]

What kind of performance could I expect from such a barrel length? Just a project idea I am kicking around right now. Thanks.

[JFettig]

I see no reason you can't get it to max subsonic speeds with this barrel length. my 10.5" does 1000fps with 9.2gr of H110 and I can still add plenty more to bump it up. I haven't checked accuracy of this load but accuracy of my supersonic loads are around 1moa.

Jon