Previous Thread
Next Thread
Print Thread
Page 2 of 4 1 2 3 4
#3434179 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: Savage_99]  
Joined: May 2008
Posts: 16,540
nsaqam Offline
Campfire Kahuna
nsaqam  Offline
Campfire Kahuna

Joined: May 2008
Posts: 16,540
Hermantown MN
Qouting Ken Waters on the .270 Win.
"...reducing barrel length below 24 inches is like installing a governor on a sports car to restrict its speed."


The Chosin Few November to December 1950, Korea.
I'm not one of the Chosin Few but no more remarkable group of Americans ever existed.
CMG 300 BP
#3434405 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: nsaqam]  
Joined: Jun 2005
Posts: 833
brooksrange Offline
Campfire Regular
brooksrange  Offline
Campfire Regular

Joined: Jun 2005
Posts: 833
USA
Here's what really got me thinking about the .270 AI that has the possibilities up higher than the 280 or 280AI? I don't know...

Originally Posted by Rodbolt
[quote=RinB] I think the 270AI is interesting though, the new RL-17 powder may get the 270AI into WSM velocity.


Quote
SAEED: Several people used this rifle (270 AI) on several African safaris, bagging well over 100 big game animals, including all the larger plains game such as sable, zebra, kudu and waterbuck. Most were shot using the Barnes X 130-grain bullet, although some were shot with the Trophy Bonded 140 grain Bear Claw. Both bullets performed without a single failure.


Quote
Wmramse- Primos Cabin- The only differences in AIs vs. their standard versions are much less (if any) body taper, longer body and neck, but shorter shoulder set to 40 degrees instead of the typical 17 degrees (for the '06 family). The sharper shoulder angle and less body taper help to burn powder more efficiently, and the overall cartridge design means easier chambering and less bolt thrust. Add in the extra powder and you can get roughly the same ballistics as a .270 WSM.


Quote
Nathanial- 150 TSX's go at 2950 with 59 grains of H4831sc
130 Accubond's at 3210 with 61 grains of H4831sc
Both loads shot over my Oehler.
60 grains of can be got into the case with the 150's but with a fair amount of compressing. 59 grains is the accurate load in my rifle so that is where I keep it.


Originally Posted by colmacivor
...With the new powders I think the 270AI is a real consideration reguardless what might have been the opinion when these new powders were not avail.. Also the 270AI with a 110 sierra at 3500'/sec is a serious coyote getter. My 270 AI has now accounted for a Rocky Mt Bighorn Ram, a Desert Bighorn Ram, quite a few wild hogs, African plains game, a Thar, and a few big muledeer. Would recommend if someone likes to reload and tinker with their hunting rifles..Good hunting John


Lots of praise- and why I ask- would you give a 270AI as an option for a mountain hunting rifle for sheep, goats, mule deer, black bear and some coyotes and wolf?


Monster Whitetails are Awesome!!!
#3434515 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: BobinNH]  
Joined: Jan 2001
Posts: 38,429
Big Stick Offline
Campfire Oracle
Big Stick  Offline
Campfire Oracle

Joined: Jan 2001
Posts: 38,429
Paradise,Alaska
You'll not catch me making mention of 150's in anything .284",but you were lauding 150 Factory loads in your 7Remmie,like they were sumptin'. They ain't.

Is 2-4" of barrel length decrease and adding another round in the belly,a fair trade,when musing a 280AI over a 7Remmie? I'm of the opinion that such things start hedging real world bets rather nicely,as per a utilitarian rifle that is actually shot in the field,as opposed to one speculated upon.

Gimme the Montucky 7WSM...mainly because I shoot 'em all..............


Brad says: "Can't fault Rick for his pity letting you back on the fire... but pity it was and remains. Nothing more, nothing less. A sad little man in a sad little dream."
#3434519 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: nsaqam]  
Joined: Jan 2001
Posts: 38,429
Big Stick Offline
Campfire Oracle
Big Stick  Offline
Campfire Oracle

Joined: Jan 2001
Posts: 38,429
Paradise,Alaska
2" of barrel won't cost a 25-06 100fps.

Rest assured that ain't a guess................


Brad says: "Can't fault Rick for his pity letting you back on the fire... but pity it was and remains. Nothing more, nothing less. A sad little man in a sad little dream."
#3434596 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: ]  
Joined: Jun 2005
Posts: 833
brooksrange Offline
Campfire Regular
brooksrange  Offline
Campfire Regular

Joined: Jun 2005
Posts: 833
USA
With the new powder, the 270 AI seems faster than a regular 270WSM and almost a Weatherby- It looks like with biger bullets that it might surpass the 280 and 280AI in capabilities too?

Quote
NEW TECHNOLOGY MAXIMIZES VELOCITY

Alliant Powder introduces Reloder® 17, a smokeless powder that utilizes new technology to increase projectile velocity in most standard rifle calibers and the new short magnum cartridges.

CALIBER BULLET VELOCITY GAIN
270 Win 100 gr HP 3554 +118

Caliber Bullet Case Primer COAL Chg Wgt Velocity
270 Win 100 gr Fed Fed 210 3.100 59.0 3554


Monster Whitetails are Awesome!!!
#3434607 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: ]  
Joined: May 2008
Posts: 16,540
nsaqam Offline
Campfire Kahuna
nsaqam  Offline
Campfire Kahuna

Joined: May 2008
Posts: 16,540
Hermantown MN
But according to experts I trust such as Mr. Waters and Mr. O'Connor, as well as my own experience, 2" of barrel length lost WILL cost the .270 Win over 100 fps.
2" extra barrel length is no handicap that I can see.


The Chosin Few November to December 1950, Korea.
I'm not one of the Chosin Few but no more remarkable group of Americans ever existed.
#3434634 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: brooksrange]  
Joined: Aug 2002
Posts: 12,924
SU35 Offline
Campfire 'Bwana
SU35  Offline
Campfire 'Bwana

Joined: Aug 2002
Posts: 12,924
Quote
With the new powder, the 270 AI seems faster than a regular 270WSM and almost a Weatherby- It looks like with biger bullets that it might surpass the 280 and 280AI in capabilities too?


And if you load 17 into the WSM and WBY you will get higher speeds.

Pressure for pressure with the same barrel length, no Ackley
round is going to get within 200 fps of a magnum round.

Outside of saving yourself time trimming brass the Ackley is
most overrated. You can load it's unimproved daddy to within
50 to 75 fps of it.


#3434670 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: nsaqam]  
Joined: Jan 2001
Posts: 38,429
Big Stick Offline
Campfire Oracle
Big Stick  Offline
Campfire Oracle

Joined: Jan 2001
Posts: 38,429
Paradise,Alaska
You are as full of [bleep] as they are,if you even begin to muse such a copious load of BS........................


Brad says: "Can't fault Rick for his pity letting you back on the fire... but pity it was and remains. Nothing more, nothing less. A sad little man in a sad little dream."
#3434685 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: SU35]  
Joined: Jan 2001
Posts: 38,429
Big Stick Offline
Campfire Oracle
Big Stick  Offline
Campfire Oracle

Joined: Jan 2001
Posts: 38,429
Paradise,Alaska
A 26" 257Wby doesn't have 200fps on a 24" 25-06AI....let alone one in 26" That ain't a guess.

A 24" 7mmRemmie doesn't have 200fps on a 280AI...that ain't a guess.

'Course,I shoot em all................


Brad says: "Can't fault Rick for his pity letting you back on the fire... but pity it was and remains. Nothing more, nothing less. A sad little man in a sad little dream."
#3434734 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: ]  
Joined: Oct 2008
Posts: 2,973
Tejano Offline
Campfire Guide
Tejano  Offline
Campfire Guide

Joined: Oct 2008
Posts: 2,973
Out Yonder
I liked the bumper sticker I saw in Montana that said
"You ain't S*** unless you have a 280" only thing wrong it should have been a 280 AI.

270 is hallowed and sacred don't mess with it. Besides a 270wsm will beat the 270 AI with no great pains. If you really want to trump them all get the 270 Roy and be done with it.


"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli
#3434743 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: Tejano]  
Joined: Jan 2001
Posts: 38,429
Big Stick Offline
Campfire Oracle
Big Stick  Offline
Campfire Oracle

Joined: Jan 2001
Posts: 38,429
Paradise,Alaska
WSM and 2.5" Roy capacities rate another peek................(hint)


Brad says: "Can't fault Rick for his pity letting you back on the fire... but pity it was and remains. Nothing more, nothing less. A sad little man in a sad little dream."
#3434840 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: ]  
Joined: May 2008
Posts: 16,540
nsaqam Offline
Campfire Kahuna
nsaqam  Offline
Campfire Kahuna

Joined: May 2008
Posts: 16,540
Hermantown MN
My Tikka T3 with 24" barrel chambered in .270 WSM is no faster weight for weight than my 24" .270 Win.
Not only that but the WSM's (I've owned the 7 WSM and the .270 WSM) were a pain to load.
I haven't even mentioned the fact that the WSM's have the less than optimal rebated rim on them too.
.270 Roy I'll give you. Very nice round.
To the original poster I'll say again that the plain old .270 Win WITH A 24" BARREL will give you more of everything than a 22" .270AI.
You have to pull the barrel to do an AI as well so I'd recommend either buying a 24" barrel for your present rifle or find a 24" rifle already chambered to .270 Win. They are plentiful for you right handers, not so much for us lefties.


The Chosin Few November to December 1950, Korea.
I'm not one of the Chosin Few but no more remarkable group of Americans ever existed.
#3435019 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: nsaqam]  
Joined: Jan 2003
Posts: 1,458
John_G Offline
Campfire Regular
John_G  Offline
Campfire Regular

Joined: Jan 2003
Posts: 1,458
B.C., Canada
I'd be interested for a quoted reference from Jack O' re: the 24-inch .270, for, IIRC, he shot and recommended the 22-inch version, claiming 3140 fps in his handloads using 4831.

Last edited by John_G; 10/30/09.
#3435569 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: BobinNH]  
Joined: Jan 2006
Posts: 18,453
RDFinn Offline
Campfire Kahuna
RDFinn  Offline
Campfire Kahuna

Joined: Jan 2006
Posts: 18,453
Bernardsville, NJ
Why don't we just say that the difference between a 270. 280 Ackley and a 7RM is basically the same, up or down. I'm a reloader so you might as well add the costs to reload each if discussing all the merits. 280 brass is cheaper than 7 mag and in a pinch you could use 06 brass as well for the standard or Ackley version of the 280. Less powder, recoil, muzzle blast and usually packaged in a light config make the 280 Ackley more attractive to me than the 7RM. Unless your ammo doesn't make it to your destination for some reason (and everything it was packaged with) ammo availability is a non-starter for me. For me, it's the sum of little gains that make the whole package more attractive than either the 270 or the 7RM. Won't argue the paper ballistics cause that's all that it is, paper and arguing.

#3435571 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: John_G]  
Joined: May 2008
Posts: 16,540
nsaqam Offline
Campfire Kahuna
nsaqam  Offline
Campfire Kahuna

Joined: May 2008
Posts: 16,540
Hermantown MN
On page 1030 of Ken Waters' pet loads 8th edition Ken writes;
"In a letter years ago, Jack O'Connor told of two of his .270 Winchester rifles, one having a 22 inch barrel that chronographed 95 fps less than his 24 inch barreled rifle with 130 grain bullets and the exact same load. It's interesting to note how closely that difference agrees with my findings."

As for Mr. O'Connors preference I have no information.


The Chosin Few November to December 1950, Korea.
I'm not one of the Chosin Few but no more remarkable group of Americans ever existed.
#3435677 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: nsaqam]  
Joined: Aug 2003
Posts: 861
BRoper Offline
Campfire Regular
BRoper  Offline
Campfire Regular

Joined: Aug 2003
Posts: 861
Parma, Idaho
A few yeas ago somebody, I think it might have been Boddington, did a comparison of the .270 Win. and .270 WSM. He used the same rifles with the same length barrels. He said that with some loads the WSM was faster and with others the .270 Win was faster. At the end of the article he said if he owned one or the other he wouldn't sell it to get the other, not enough difference.

#3435754 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: ]  
Joined: Jan 2007
Posts: 35,900
BobinNH Offline
Campfire Oracle
BobinNH  Offline
Campfire Oracle

Joined: Jan 2007
Posts: 35,900
Originally Posted by PaleWhiteCracker
You'll not catch me making mention of 150's in anything .284",but you were lauding 150 Factory loads in your 7Remmie,like they were sumptin'. They ain't.

Is 2-4" of barrel length decrease and adding another round in the belly,a fair trade,when musing a 280AI over a 7Remmie? I'm of the opinion that such things start hedging real world bets rather nicely,as per a utilitarian rifle that is actually shot in the field,as opposed to one speculated upon.

Gimme the Montucky 7WSM...mainly because I shoot 'em all..............


PWC: You're right....they ain't.But they go bang in a pinch.....if I need them,away from home,was my point.

I'm with you on the extra round;situations do pop up.....


I shoot them all,too...range,and when I hunt....I through speculating.....

Last edited by BobinNH; 10/30/09.



The 280 Remington is overbore.

The 7 Rem Mag is over bore.
#3435785 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: BobinNH]  
Joined: Mar 2001
Posts: 18,881
Eremicus Offline
Campfire Kahuna
Eremicus  Offline
Campfire Kahuna

Joined: Mar 2001
Posts: 18,881
Placerville,CA,USA
I'm so disappointed.... I thought you guys were talking about the 30'06.......
Sorry Dober. I stole your line. E

#3435833 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: Eremicus]  
Joined: Jan 2006
Posts: 18,453
RDFinn Offline
Campfire Kahuna
RDFinn  Offline
Campfire Kahuna

Joined: Jan 2006
Posts: 18,453
Bernardsville, NJ
Tomorrow I'll start a thread on " 30/06 twist......1-10 or 1-11....beer cans or bust...

#3436204 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: nsaqam]  
Joined: Jan 2001
Posts: 38,429
Big Stick Offline
Campfire Oracle
Big Stick  Offline
Campfire Oracle

Joined: Jan 2001
Posts: 38,429
Paradise,Alaska
'gam,

The "troubles" you cite are squarely commensurate with your "experience" and that'd be an aged trend.

It takes some doing,to pull enough spark plugs on the WSM,to slow it to '06 case capacity velocities. Nawwwwww....it takes more than that.

I doubt you could reliably get the pointed end of a bullet,facing out of the casemouth..................


Brad says: "Can't fault Rick for his pity letting you back on the fire... but pity it was and remains. Nothing more, nothing less. A sad little man in a sad little dream."
#3436306 - 10/30/09 Re: .270 Win. Ackley Improved (AI) [Re: ]  
Joined: Jan 2006
Posts: 4,880
rahtreelimbs Offline
Campfire Guide
rahtreelimbs  Offline
Campfire Guide

Joined: Jan 2006
Posts: 4,880
The Burgh !!!
This is a good thread. I always thought that the 270 had enough neck that it could be moved up............sort of like a 300 wm or 300 sav..........and that would allow enough additional powder to make it worthwhile!


Guess I was wrong!









[Linked Image]













#3437020 - 10/31/09 Re: .270 Win. Ackley Improved (AI) [Re: rahtreelimbs]  
Joined: Jan 2001
Posts: 38,429
Big Stick Offline
Campfire Oracle
Big Stick  Offline
Campfire Oracle

Joined: Jan 2001
Posts: 38,429
Paradise,Alaska
The 270Gibbs is your huckleberry...............


Brad says: "Can't fault Rick for his pity letting you back on the fire... but pity it was and remains. Nothing more, nothing less. A sad little man in a sad little dream."
#3437341 - 10/31/09 Re: .270 Win. Ackley Improved (AI) [Re: ]  
Joined: May 2008
Posts: 16,540
nsaqam Offline
Campfire Kahuna
nsaqam  Offline
Campfire Kahuna

Joined: May 2008
Posts: 16,540
Hermantown MN
Since PWC is the smartest, most experienced person to ever visit the Campfire you need to listen to him. It seems that his experiences are more relevant and valuable than anyone elses.
He must even have ESP too because he knows that I am incompetent and inexperienced even though he doesn't know me from Adams off ox.
I'll trust Mr. Waters and Mr O'Connor. You can have PWC!


The Chosin Few November to December 1950, Korea.
I'm not one of the Chosin Few but no more remarkable group of Americans ever existed.
#3437357 - 10/31/09 Re: .270 Win. Ackley Improved (AI) [Re: nsaqam]  
Joined: Jan 2001
Posts: 38,429
Big Stick Offline
Campfire Oracle
Big Stick  Offline
Campfire Oracle

Joined: Jan 2001
Posts: 38,429
Paradise,Alaska
I ain't guessing,therein lies the difference(s).

You can bullshitt the fans,but you can't bullshitt the players...............


Brad says: "Can't fault Rick for his pity letting you back on the fire... but pity it was and remains. Nothing more, nothing less. A sad little man in a sad little dream."
Page 2 of 4 1 2 3 4

Moderated by  RickBin, SYSOP 

AIH 160 1
Who's Online Now
451 registered members (22250rem, 270wsmnutt, 1OntarioJim, 2be1, 175rltw, 62 invisible), 1,338 guests, and 725 spiders.
Key: Admin, Global Mod, Mod
RBCN 160 3









Copyright © 2000-2018 24hourcampfire.com, Inc. All Rights Reserved.
 
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.089s Queries: 15 (0.005s) Memory: 1.0703 MB (Peak: 1.4085 MB) Zlib enabled. Server Time: 2017-10-20 19:58:20 UTC