Quarterbore.Net Forums


Go Back   Quarterbore's Forums > 300 Whisper Forums > 300 Whisper Rifles and Pistols
Home Forums Classifieds Photo Server FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
  #1  
Old 04-02-2009, 04:33 PM
TCCrewchief76's Avatar
TCCrewchief76 TCCrewchief76 is offline
Senior Member
 
Join Date: Apr 2009
Posts: 178
Model 1 300 Fireball thread pitch

Just got off the phone with a lady from M1, and she specified that the thread pitch on their Fireball barrels is 1/2-36. The option to have it changed is $50. I don't understand why they don't use 5/8-24.

Kevin
__________________
Can you hear that? It's our founding fathers turning over in their graves...
Reply With Quote
  #2  
Old 04-02-2009, 05:00 PM
Fudmottin Fudmottin is offline
Senior Member
 
Join Date: Dec 2008
Posts: 121
I think it's because they don't really want to do 300-221 barrels. Look up tp555 and get a real barrel. You can have your 5/8-24. It's no more difficult to machine that from a Douglas barrel blank then any other thread. Also you get the port in the pistol position.
Reply With Quote
  #3  
Old 04-02-2009, 07:13 PM
TCCrewchief76's Avatar
TCCrewchief76 TCCrewchief76 is offline
Senior Member
 
Join Date: Apr 2009
Posts: 178
tp555? Is this a username here? Company? The blank is a Douglas? What are the benefits of having the port in the pistol position? I would assume this would allow the use of pistol powders to cycle the action, yes? Higher port pressure closer to the action as opposed to the placement down the barrel.

I love this place,

Kevin
__________________
Can you hear that? It's our founding fathers turning over in their graves...
Reply With Quote
  #4  
Old 04-02-2009, 07:50 PM
HotLead's Avatar
HotLead HotLead is offline
Member
 
Join Date: Feb 2008
Posts: 31
tp555 makes barrels for ARs. His business is Paladin Machine service:

The pistol gas position should allow for more flexibility with subsonic loads. Other users have barrels with the gas port in the pistol position and have had fairly good results, I am sure they will chime in with input.

Paladin Machine Service
3832 gates ford rd.
Kershaw,Sc 29067
(803) 475-7542

(He is just now finishing my barrel in .30/221)
Reply With Quote
  #5  
Old 04-02-2009, 09:28 PM
TCCrewchief76's Avatar
TCCrewchief76 TCCrewchief76 is offline
Senior Member
 
Join Date: Apr 2009
Posts: 178
Do you mind me asking how much you paid for your barrel at Paladin?
__________________
Can you hear that? It's our founding fathers turning over in their graves...
Reply With Quote
  #6  
Old 04-03-2009, 07:18 PM
HotLead's Avatar
HotLead HotLead is offline
Member
 
Join Date: Feb 2008
Posts: 31
Quote:
Originally Posted by TCCrewchief76 View Post
Do you mind me asking how much you paid for your barrel at Paladin?
Sent you a private message
Reply With Quote
  #7  
Old 04-04-2009, 08:45 PM
mooster1223 mooster1223 is offline
Member
 
Join Date: Nov 2008
Posts: 45
Quote:
Originally Posted by Fudmottin View Post
I think it's because they don't really want to do 300-221 barrels. Look up tp555 and get a real barrel. You can have your 5/8-24. It's no more difficult to machine that from a Douglas barrel blank then any other thread. Also you get the port in the pistol position.
M1S WILL thread 5/8 24 AND port in the pistol position. All you have to do is ask. The reason they charge extra for the 5/8 24 threading is that they order the barrels from an outside source and assemble your upper from a "box of parts". If you want 5/8 24, they order a non threaded barrel and then thread it in their shop. Just costs extra to "have it your way". If money is no object then a fully custom barrel is the way to go.
Reply With Quote
  #8  
Old 04-06-2009, 11:50 PM
Fudmottin Fudmottin is offline
Senior Member
 
Join Date: Dec 2008
Posts: 121
Thanks for the correction.

As far as money goes... Barrel blanks are not all that expensive. Although you certainly won't be getting a $500 upper going the custom route unless you already have spare parts lying around that you don't count into the cost. But you can "have it your way" for a reasonable price.

In my area, ARs and everything related to them are super expensive. I did not pay more building my own than going with an off the shelf rifle. I didn't save money either of course.
Reply With Quote
  #9  
Old 11-24-2009, 07:23 PM
AfricanJerry's Avatar
AfricanJerry AfricanJerry is offline
Junior Member
 
Join Date: Nov 2009
Posts: 3
I bought a M1S 300 fireball upper this month and 5/8 24 is now the standard thread pitch on them. They are also sending them out with a .123 gas port hole size standard.
__________________
Ingwe Safaris - Africa's most affordable safaris
Reply With Quote
  #10  
Old 11-24-2009, 07:32 PM
sharky47 sharky47 is offline
Member
 
Join Date: Sep 2008
Posts: 61
I do manufacture an adapter to go from 1/2 X 36 to 5/8 X 24 for those that have a M1 Sales barrel with that thread.

PM for details, it costs less than the $50 that they want to charge......


When I ordered my M1S barrel, I asked them to leave the threads and the gas port off completely and I would take care of that stuff. They did leave the gas port undrilled, but still sent me a 1/2 X 36 barrel. Wasn't worth trying to mess with an exchange so I setup of the CNC lathes and made a pile of adapters.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 08:50 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.