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Forum: 300 Whisper Rifles and Pistols

03-03-2009, 01:44 AM

Replies: 20

300 Whisper SBR AR

Views: 6,779

Posted By gotgraham

No problem. If you're going to have an adjustable...

No problem. If you're going to have an adjustable gas block, I would suggest drilling the port out to the full inside diameter of your gas tube. Others can probably chime in. I think its not much...

Forum: 300 Whisper Rifles and Pistols

03-02-2009, 04:35 PM

Replies: 20

300 Whisper SBR AR

Views: 6,779

Posted By gotgraham

Thanks guys! Bullet: 190gr. HPBT-M ...

Thanks guys!

Bullet: 190gr. HPBT-M
Primer: WSR
Case: LC brass mixed year
Powder: Hodgdon's Lil'gun
Weight: 7.7 gr. @ 920 fps
7.5 gr. @ 875 fps
7.4 gr. @ 800 fps

Forum: 300 Whisper Rifles and Pistols

02-28-2009, 08:45 PM

Replies: 20

300 Whisper SBR AR

Views: 6,779

Posted By gotgraham

Ok. Range report time... Accuracy was great...

Ok. Range report time...

Accuracy was great - about 1 moa with the super sonic load I tested. After drilling out my gas port to 0.093", function was flawless. Bolt speed was just right, the brass...

Forum: 300 Whisper Rifles and Pistols

02-19-2009, 03:28 PM

Replies: 20

300 Whisper SBR AR

Views: 6,779

Posted By gotgraham

I tested it out last night - worked awesome. I...

I tested it out last night - worked awesome. I will get some video / audio this weekend to share.

Forum: 300 Whisper Rifles and Pistols

02-18-2009, 12:54 AM

Replies: 20

300 Whisper SBR AR

Views: 6,779

Posted By gotgraham

I got my Gemtech HVT! It was approved on the 10th...

I got my Gemtech HVT! It was approved on the 10th and I picked it up form the dealer today. Can't wait to try it out...

http://img19.imageshack.us/img19/2018/suppressoronze5.jpg...

Forum: 300 Whisper Rifles and Pistols

01-06-2009, 05:12 PM

Replies: 20

300 Whisper SBR AR

Views: 6,779

Posted By gotgraham

It's a 1-8" twist barrel. I am current shooting...

It's a 1-8" twist barrel. I am current shooting 190gr prvi projectiles through it. It seems to be a pretty decent package.

Yessir

Forum: 300 Whisper Rifles and Pistols

12-18-2008, 12:15 PM

Replies: 20

300 Whisper SBR AR

Views: 6,779

Posted By gotgraham

Thanks! I got the barrel from a friend of mine -...

Thanks! I got the barrel from a friend of mine - don't know where he got it. It was originally 16" with a pistol length gas system. I had it cut down to 8.5". No adjustable gas block yet. I had...

Forum: 300 Whisper Rifles and Pistols

12-18-2008, 01:20 AM

Replies: 20

300 Whisper SBR AR

Views: 6,779

Posted By gotgraham

300 Whisper SBR AR

Hello all. My name is Jacob. I'm new to the forums, but have been playing around with 300 whisper for the last year or so.

Just about done with my SBR 300 whisper AR-15. It’s turning out nicely I...

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