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View Full Version : My new Noveske 10.5" 300 Fireball in my LMT MRP

jasonusvi
10-07-2010, 04:32 PM
My new Noveske 10.5" 300 Fireball in my LMT MRP. I had this barrel converted and dropped in in just before 300 Blackout was announced. I hope its fully compatible as commercial ammo will be a nice option in a pinch. Guess I plan to buy 300 Blackout dies. Anyway, what do you guys think? Will shoot it for the first time this weekend. I'm waiting for a thread converter and will try my Nexus III 45 pistol can at some point (only intend to shoot subsonic).

http://i752.photobucket.com/albums/xx166/jasonusvi/LMT%20MRP/mrpfb5.jpg
tp555
10-08-2010, 07:37 AM
The novesky uses the 1.4 chamber.
jasonusvi
10-08-2010, 10:17 AM
The novesky uses the 1.4 chamber.

I am new to Whisper/Fireball/Blackout. What does 1.4 chamber mean relative to my hope to move to Blackout standard? Fine as is or need ream or not possible? Thanks
jasonusvi
10-08-2010, 10:54 AM
According to new info on Noveske website my barrel should be good to go with 300BLK. They are working on a program to check / ream barrels below serial number 290,000.

"Noveske Rifleworks will be changing our 300 Fireball (300 FB) barrel production to the 300 AAC BLACKOUT... Noveske 300 FB barrels with a serial number less than 290000 or without a serial number will need to be checked before using 300 AAC BLACKOUT ammunition. We will be setting up a program to send in older barrels for inspection and reaming if needed."
jasonusvi
11-07-2010, 04:45 PM
18" mid gas 556 installed & 10.5" Noveske 300FB with can on side

http://i752.photobucket.com/albums/xx166/jasonusvi/LMT%20MRP/3005.jpg

http://i752.photobucket.com/albums/xx166/jasonusvi/LMT%20MRP/3001.jpg
alorton
11-07-2010, 11:04 PM
I am new to Whisper/Fireball/Blackout. What does 1.4 chamber mean relative to my hope to move to Blackout standard? Fine as is or need ream or not possible? Thanks

I believe he is referring to the 1.4" case length. There are different sources that cite 1.4" or 1.355" case lengths for the Whisper.

FWIW I was unaware that Noveske used the 1.4" and I've been trimming all my cases to 1.355" for use in my Noveske 10.5" barrel without problems.
BachelorJack
11-10-2010, 06:29 PM
Who did the conversion?
jasonusvi
11-10-2010, 09:01 PM
Who did the conversion?

http://www.dbmg-llc.com/