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Forum: 300 Whisper Rifles and Pistols 02-13-2011, 10:36 AM
Replies: 31
Views: 5,180
Posted By rsilvers
We have seen the opposite - the lighter the...

We have seen the opposite - the lighter the bullet, the better our accuracy - at least in short barrels (9 inch). 16 inch has much less of a preference.
Forum: 300 Whisper Rifles and Pistols 02-07-2011, 11:18 PM
Replies: 31
Views: 5,180
Posted By rsilvers
Berger 110 and Sierra 110 Varminter. This was a...

Berger 110 and Sierra 110 Varminter. This was a test barrel, not an AR15. But it did have the 300 AAC BLACKOUT chamber.
Forum: 300 Whisper Rifles and Pistols 02-07-2011, 09:03 AM
Replies: 31
Views: 5,180
Posted By rsilvers
No one knows in any sort of reliable way.

No one knows in any sort of reliable way.
Forum: 300 Whisper Rifles and Pistols 02-05-2011, 07:43 PM
Replies: 31
Views: 5,180
Posted By rsilvers
With our 50 round test all shots were included in...

With our 50 round test all shots were included in the 0.85 group at 100. No doubt one can find some really small 3 shot groups in there.
Forum: 300 Whisper Rifles and Pistols 02-05-2011, 05:33 PM
Replies: 31
Views: 5,180
Posted By rsilvers
No you would have to get 10 300-221 barrels,...

No you would have to get 10 300-221 barrels, shoot them all with 5 different bullets, 50 shots each, then convert them all, then repeat. A huge and expensive process.

I do have accuracy data for...
Forum: 300 Whisper Rifles and Pistols 01-31-2011, 12:56 AM
Replies: 31
Views: 5,180
Posted By rsilvers
You can be fine with handloads if you load them...

You can be fine with handloads if you load them as if they were 300 Whisper(R). But 300 AAC BLACKOUT full power ammo will have higher than SAAMI pressure in your barrel even if the bullet does not...
Forum: 300 Whisper Rifles and Pistols 01-30-2011, 02:33 PM
Replies: 31
Views: 5,180
Posted By rsilvers
Some 300-221 dies are in spec for 300 AAC...

Some 300-221 dies are in spec for 300 AAC BLACKOUT. That does not mean the chambers are the same. Shooting 300 AAC BLACKOUT ammo in a 300-221 chamber would be like shooting 5.56mm ammo in a 223...
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