Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Reloading

Reloading Techniques For Reloading


Reply

.270 Ackley Improved

 
LinkBack Thread Tools Display Modes
  #1  
Old 04-07-2010, 04:06 PM
JSW JSW is offline
Junior Member
 
Join Date: Feb 2010
Posts: 7
.270 Ackley Improved

I am thinking about having my .270 winchester rebarreled into .270 AI. I have never had an ackley improved gun and wanted to ask anybody who has had one in .270 how it shot?

What is the best way to make AI brass?
Reply With Quote
  #2  
Old 04-07-2010, 05:59 PM
Silver Member
 
Join Date: Feb 2008
Posts: 429
Re: .270 Ackley Improved

To be completely honest with you, the 270 is the last cartridge I would AI!
It has all the velocity you could want in that size case, it really is the first magnum.
If you want more performance, do what I did and re-barrel to 270Weatherby, now this is one cartridge worth all the hype!
It will push 150gr bullets as fast as the 270 can push 110gr bullets! Albeit with a longer barrel of course!

There really is not much gain to be made by AI'ing the 270, it will all likelyhood only achieve an extra 50fps, maybe a little bit more if you're lucky.
Reply With Quote
  #3  
Old 04-07-2010, 07:39 PM
Platinum Member
 
Join Date: Mar 2002
Location: Wyoming
Posts: 2,615
Re: .270 Ackley Improved

I have an AI or improved wildcat in about everything but 270. Everyone I ever talked to about it said it was the least favorable to AI because for some reason there is no appreciable gain for some reason with the 270. I can't confirm this because I never tried it. But that is what I have been told by several who have tried it. Makes no sense to me. I agree that the 270 wby is awesome. Mine shoots a high BC 150 grain bullet 3300 fps which will take down about anything.

The only 270 calibers I have are the 270 winchester and the 270 wby. I figure that covers it. In between I would just do a 270 wsm instead of the 270 AI.

You might consider the 280 AI which you will be very pleased with instead of the 270 AI. The 7mm gibbs and 7mm JRS are right on the heals of the 7mm rem mag and will do anything the rem mag will do. With the 7mm bullets available the 280 AI is one of the better AI chamberings for hunting.
__________________
Predictions are difficult, especially when they involve the future

Last edited by Long Time Long Ranger; 04-07-2010 at 07:44 PM.
Reply With Quote
  #4  
Old 04-07-2010, 07:59 PM
JSW JSW is offline
Junior Member
 
Join Date: Feb 2010
Posts: 7
Re: .270 Ackley Improved

Thanks for the information. The main reason i want to use .270 AI is so that i can stay with same bolt face.
Reply With Quote
  #5  
Old 04-07-2010, 08:10 PM
Silver Member
 
Join Date: Apr 2009
Location: western Oregon
Posts: 120
Re: .270 Ackley Improved

According to the re-print of Ackley's published improvements here:
Article posted on Precision Shooting Website about Ackley Improved cartridges - Shooters Forum

The .270 is listed twice. Most likely with different weight bullets. The velocity increases Ackley realized were listed as 7.8%-8.8% range.

Either one of those increases is pushing the .270WSM velocities.

I wouldn't mind getting 150gr SSTs or Interbonds (.525BC) up around 3100fps.
Plus, the case life and lack of case trimming would be worth it IMHO.

The .280AI has similar gains and it's popularity has skyrocketed in the last few years.
Reply With Quote
  #6  
Old 04-07-2010, 11:15 PM
Platinum Member
 
Join Date: Mar 2002
Location: Wyoming
Posts: 2,615
Re: .270 Ackley Improved

The 280 AI is the same bolt face and will work perfect on your action. There are many good choices in 7mm high bc hunting bullets. Very limited in 270.
__________________
Predictions are difficult, especially when they involve the future
Reply With Quote
  #7  
Old 04-08-2010, 01:04 AM
Platinum Member
 
Join Date: Jan 2004
Location: Blackfoot, Idaho
Posts: 8,064
Re: .270 Ackley Improved

I 'think' I recall a thread awhile back by someone with a very long drop tube filling the Win case with IMR 7828 (probably ssc) and getting wonderful velocity, accuracy and case life.

I haven't caught on how to do a search on more than one word thus can't find it.

Velocities in my 270 Win, w/140 class bullet are limited to 3200 FPS because that's a velocity I'm very comfortable with and case life is forever. (27" Lilja bbl)

The other 270 is an Allen Magnum w/the 150 class bullets zipping along at 3650. Kind of cool but really unnecessary as it was made for a bit heavier bullets.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: .270 Ackley Improved
Thread Thread Starter Forum Replies Last Post
7mm stw ackley improved?? dodgefreak8 Rifles, Bullets, Barrels and Ballistics 7 01-24-2013 11:02 PM
Ackley improved or Ackley changed north of 53 Rifles, Bullets, Barrels and Ballistics 10 10-19-2008 03:49 PM
.270 Win Ackley Improved? Death Ray 7 Rifles, Bullets, Barrels and Ballistics 5 03-13-2008 03:53 PM
30-06 Ackley Improved Wind Dancer Rifles, Bullets, Barrels and Ballistics 11 02-11-2005 10:02 PM
243 Ackley Improved Terry Brady Rifles, Bullets, Barrels and Ballistics 5 11-01-2003 02:05 AM

Current Poll
Are you on Facebook?
Yes - 46.38%
1,113 Vote
No - 19.54%
469 Votes
No, but I may join - 1.75%
42 Votes
No way, are you kidding? - 36.08%
866 Votes
Total Votes: 2,400
You may not vote on this poll.

All times are GMT -5. The time now is 04:00 AM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC