Guns Like firearms themselves, there's a wide variety of opinions on what's the best gun.

? 6mm improved

Old 10-15-2006, 01:01 PM
  #1  
Spike
Thread Starter
 
Join Date: Jan 2005
Posts: 55
Default ? 6mm improved

anyone have experience with the 6mm improved 40 degree shoulders ? thanks for any comments.
harrell is offline  
Old 10-15-2006, 03:21 PM
  #2  
Fork Horn
 
mello_collins's Avatar
 
Join Date: Feb 2003
Location: Columbia SC USA
Posts: 376
Default RE: ? 6mm improved

How is that supposed to hold down pressures?

mello
mello_collins is offline  
Old 10-15-2006, 04:52 PM
  #3  
 
Roskoe's Avatar
 
Join Date: Mar 2005
Location: Colorado
Posts: 4,127
Default RE: ? 6mm improved

I have, in the past, owned both the 6MM Rem AI and the .243 AI. Both are real nice calibers, and produce around 175 fps more velocity than the parent case. Brass life can be very good as well, with no need to ever trim cases.

But if you are looking for a high performance 6MM, the best of the lot is the 6MM-284 - in my opinion.It is a little better caliber than the .240 Weatherby; and now that Norma and Hornady make brass for 6.5-284, there is a readily available supply of high quality cases that require minimal work to neck down. The old .284 Winchester cases worked fine, but they needed to be necked in at least two steps and are not as consistent as the Norma cases.
Roskoe is offline  
Old 10-15-2006, 05:10 PM
  #4  
 
Join Date: Jan 2005
Location:
Posts: 505
Default RE: ? 6mm improved

ORIGINAL: Roskoe

I have, in the past, owned both the 6MM Rem AI and the .243 AI. Both are real nice calibers, and produce around 175 fps more velocity than the parent case. Brass life can be very good as well, with no need to ever trim cases.

But if you are looking for a high performance 6MM, the best of the lot is the 6MM-284 - in my opinion.It is a little better caliber than the .240 Weatherby; and now that Norma and Hornady make brass for 6.5-284, there is a readily available supply of high quality cases that require minimal work to neck down. The old .284 Winchester cases worked fine, but they needed to be necked in at least two steps and are not as consistent as the Norma cases.
That's what I thought too, however, I'm having all kinds of problems with my 6-284. So far things have not gone well. It's back at Competitive Edge now having the bedding checked and safety/trigger worked on. I've never had so many problems with a Mauser action and Sako barrel the thing should be a dream......right now, it's a nightmare! One thing for sure the go nogo gagues say good to go.....the rifle is just a basket case......more to come and hopefully, better news. OBTW, I don't see why a Ackley shoulder would reduce pressures....When you get the extra speed there must be a higher resultant in pressure. I love the Ackley shoulder but you just can't load one up and not expect higher chamber pressures. From what I've read and experienced with a 6.5-06Ackley, 257 Ackley and '06Ackley you get about 100-150'/sec without pressure problems. Really not bad enhancement for all the other benefits already mentioned. Regards, Rick.
48thguns is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
carpsniper
Illinois Bowfishers Club
0
03-15-2008 07:17 PM
Colorado Luckydog
Bowhunting
2
08-05-2007 09:25 PM
KodiakArcher
2007 HNI 5-Spot League
6
02-17-2007 07:50 AM
cataway
Bowhunting
15
06-26-2006 07:30 PM
mobow
Bowhunting
20
11-29-2005 05:23 PM

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
Trackbacks are On
Pingbacks are On
Refbacks are Off


Quick Reply: ? 6mm improved


Contact Us - Manage Preferences - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.