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  #11  
Old 12-31-2006, 09:06 PM
interceptor interceptor is offline
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Join Date: Dec 2006
Posts: 121
Hey 320pf!! Have you figured out how to get a 320 pf from the .300 Whisper safely/reliably? If so, then I'd love to hear the recipe. We've got an ongoing thread/feud at brianenos.com about the feasibility of this caliber to make major, and be as fast as .223 minor.

Or does your moniker mean something else...?
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  #12  
Old 01-01-2007, 11:33 AM
320pf 320pf is offline
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Join Date: Jun 2006
Posts: 304
320 power factor

Interceptor,

The answer is yes, I can get a 320 power factor out the 300-221 fireball aka Whisper(r). I am not sure what you mean be "as fast as .223 minor". If you are talking about the recoil?... I can say that the recoil is only slightly more than my 223 and instead of being a "snap" it is more of a roll.

I can make 320 pf with 180 g bullets using several different powders. Currently my best loads for 3-guning are W296 (1830 fps and 1 in. groups at 100 yrds.) and Lil'Gun (1880 fps about 2 in groups at 100 yrds. This load may be a tad too hot. I have the run more tests and mic the cases).

See all of my reloading data at:

http://reloadersnest.com/frontpage.asp?CaliberID=135

My loads are listed under "Not yet verified user loads" All of the loads listed I have shot and chrono'ed, except the one using the AD2205 powder.

Now here is the best part. All of my 30 rd 223 mags work with the 300-221 fireball, including my beta-c mag.

As they say however, you can not cheat physics. The trajectory is NOT as flat as the 223. But if you practice and get you know your rifle and sights you can make the 200-250 yrd hits without too much effort.

I had Randall at AR15 Barrels.com (http://ar15barrels.com/) run some QUICKLOAD models for me and he verified some of the reloading data that I have found on the web. It looks like it might be possible to make major with 155 g palma and/or 165 g bullets at ~2000 fps. I will let you know when I finish my testing.

Maybe we will run into each other at a 3-gun match

Here is the link that give the data on the rig that I am running:

http://www.quarterbore.net/forums/showthread.php?t=1151

http://www.quarterbore.net/forums/at...0&d=1163053744

320pf

Last edited by 320pf; 01-07-2007 at 11:42 AM.
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  #13  
Old 01-03-2007, 06:39 PM
interceptor interceptor is offline
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Join Date: Dec 2006
Posts: 121
Maybe we will... And maybe I will be shooting my brand new .300/221. Ordered one this morning from Model 1, complete A3 w/ target crown. I wanted to be able to put my own thread pitch on to adapt w/ a supressor.

Now to load 'em up. I know there's someone here on the forum who sells brass, so I'm up to give him a call and get some on the way. Other stop will be at Powder Valley for more projectiles and kegs.

Man!! I'm stoked!!

BTW, you posted a link to THIS thread.
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