300 AAC Blackout.

[DSB OUTDOORS]

Started reloading the AAC tonight. Using VihtaVuori N-110. Nosler 220g SSp. Hunting load. Started at 9.1g will not cycle, went to 9.5g, still won't cycle. Single shot.

I thought, Ok new upper, try factory remington 115g bullet. Shot just fine and dandy. 5 rounds.

Tried 9.7g VV. no such luck. Any one else loading 220 with VV, powder??

Tomorrow I'll try a hotter load, but wondering if it's getting close to defeating the purpose of sub-sonic??

I may switch to H-110 powder and see.

[Colorado Osprey]

no personal experience but quarterbore.net has had a whole area for Whisper shooters for many years.

I have heard that 9.7 grains of H110 will push a 200 grain bullet at 1030 fps


http://www.quarterbore.net/forums/forumdisplay.php?f=38

Where is your gas port? Many 300 Whispers aka 300/223, 300AAC, 300 Blackout have trouble cycling sub-sonic if the gas port is in the carbine location. Most move it to the pistol port location.

The 115's are super sonic. The 220's are sub-sonic. Sounds like you might need to move your gas port if you choose to shoot sub-sonic.

[DSB OUTDOORS]

Ya, Hoser turned me on to that sight when I bought his 300 brass, Thanks Hoser!! But I still have yet to find some good reload data for the VV Powder. For the 300 AAC round. But I will develope a load and share it with you all!! Thanks

no personal experience but quarterbore.net has had a whole area for Whisper shooters for many years.

I have heard that 9.7 grains of H110 will push a 200 grain bullet at 1030 fps


http://www.quarterbore.net/forums/forumdisplay.php?f=38

Where is your gas port? Many 300 Whispers aka 300/223, 300AAC, 300 Blackout have trouble cycling sub-sonic if the gas port is in the carbine location. Most move it to the pistol port location.

The 115's are super sonic. The 220's are sub-sonic. Sounds like you might need to move your gas port if you choose to shoot sub-sonic.

[DFBrews]

My dies are in the mail DSB!

i have some 147 grain pull downs for plinking and am thinking about 110 grain vmax or the barnes vor tx for a flannel thin skinned game round. powder from what i have read is h110. I found a link to expanding lead sub bullets that i need to find again.

[DFBrews]

found it

click me click me!

[Danimal]

You just described my exact experience with N-110 and 208 grain a-max. Would not cycle until they were 1200 fps plus. So I tried H-110, and have had better results. It is dirty, but not that bad for the subsonic loads. The N-110 works great for supersonic loads though. I have a load that I am working up with 125 grain Nosler that had a total fps spread of 10 fps, and 4 of the 10 shot string were the exact same velocity per my chronograph. The group was about 1.5 MOA, but I still was impressed with the consistency.

I am going to do some load development with a few powders, but that is going to wait until after archery season.

[Hoser]

Tomorrow I'll try a hotter load, but wondering if it's getting close to defeating the purpose of sub-sonic??

If you are over 1125-1150 and the gun still does not cycle, open up your gas port or get in touch with Spook. He is a member here and his gunsmithing specializes in stuff like the 300 Whisper and other subsonic wildcats.

[DSB OUTDOORS]

I got some Nosler Partition 220 gr SSp to cycle with 9.9g of V V N110. Have to Chrono it and see the Vel.

Last night I loaded some Siera 200 HPBT with 12g V V N110 cycled great, but not sure of the preassure or Vel. at this point. I'll back it down to the almost minum of cycle issue, and chrono it.

[20X11]

You just described my exact experience with N-110 and 208 grain a-max. Would not cycle until they were 1200 fps plus. So I tried H-110, and have had better results. It is dirty, but not that bad for the subsonic loads. The N-110 works great for supersonic loads though. I have a load that I am working up with 125 grain Nosler that had a total fps spread of 10 fps, and 4 of the 10 shot string were the exact same velocity per my chronograph. The group was about 1.5 MOA, but I still was impressed with the consistency.

I am going to do some load development with a few powders, but that is going to wait until after archery season.

Very interested in the N-110 supersonic results...what powder charge range do you recommend for that? Is it comparable to H-110?

[jerrymrc]

My dies are here and I have everything else except the brass. Of course the PSA upper gets here on friday and I leave for Oregon on thursday...

So my load playing starts in sept.