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#3127975 - 06/27/09 12:50 PM Re: .338-06 AI vs. .338 WSM? [Re: JBabcock]
PreciousLiberty Offline
Campfire Regular

Registered: 11/21/07
Posts: 651
Loc: Charleston, SC
Originally Posted By: JBabcock
If I was bound and determined to own a short 338 mag, I'd go with the Ruger.

I did some nosing around the Hogdon site for load data.

The .338 RCM looks to be quite anemic (top vel load):
225 GR. - HDY IB - BL-C(2) - 58.0gr - 2689 FPS - 61,500 PSI

Compared to the unimproved .338-06 (BLC-2 wasn't the best powder, but it was very close):
225 GR. SPR SPBT - BL-C(2) - 55.0gr - 2671 FPS - 62,900 PSI

I'm assuming both were tested in a 24" barrel...I have no idea how Hornady can claim 2850 FPS for its factory 225 gr. .338 RCM ammo...

At any rate, if I go short/fat it'll definitely be the .338 WSM, with around 65 gr. of powder capacity with the 225. I'm leaning more and more (back) towards the .338-06 AI though.

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#3128035 - 06/27/09 01:51 PM Re: .338-06 AI vs. .338 WSM? [Re: PreciousLiberty]
JBabcock Offline
Campfire Ranger

Registered: 12/07/02
Posts: 1515
Loc: Longbranch, Washington
Whatever works for ya! I can load down, or go up. If the 338-06 AI trips your trigger, then go for it. Me, I'm more interested in hunting than worrying about a few feet per second one way or the other.

I could definately see the advantage to an Ackley over another wildcat though, if the caliber you were Ackleyizing was a common production cartridge. The 338-06 ain't though. The 338 WSM makes zero sense to me. I'd choose the 325 WSM over the 338 if that's what you're after.

However, there's a saying I've heard before, goes something like this. "To each his own..."

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#3128088 - 06/27/09 02:49 PM Re: .338-06 AI vs. .338 WSM? [Re: JBabcock]
efw Offline
Campfire 'Bwana

Registered: 11/30/07
Posts: 11445
Loc: Mi.
I ran numbers on the WM vs. '06 quite a while ago and was rather astonished at the results.

I just built an '06 and had assumed I'd someday want a WM, but found that on an apples-to-apples comparison of the fastest loads for each w/ the 200 gr Interlock the difference was something like 150 fps (show me an elk that'd tell the difference between the two!) or something like 5% more velocity for 18% more powder. Huh?

If you're dedicated to a wildcat I'd go w/ the AI, personally. If you're looking for greater efficiency I'd go w/ the AI or straight-up A-Square, personally, WM under consideration or not.

The RCM is just an '06 in a short action that'll be a distant memory within a decade, IMO.
_________________________
I need a drink of something like water
I need a taste of love divine
Sometimes you just gotta do what you oughta
Sometimes you bring up the water when the well is dry

-Buddy Miller

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#3128688 - 06/27/09 08:42 PM Re: .338-06 AI vs. .338 WSM? [Re: efw]
WhelenAway Offline
Campfire Guide

Registered: 01/31/06
Posts: 2923
Quote:
The RCM is just an '06 in a short action that'll be a distant memory within a decade, IMO.



The case capacity is the same, so it's no surprise that the velocities are too (except in factory pixie dust loads).


But I've seen your quote before . . . oops, maybe it was

Quote:
The 284 is just a 270 in a short action that'll be a distant memory within a decade, IMO.



_

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#3128839 - 06/27/09 11:08 PM Re: .338-06 AI vs. .338 WSM? [Re: JBabcock]
PreciousLiberty Offline
Campfire Regular

Registered: 11/21/07
Posts: 651
Loc: Charleston, SC
Quote:
I can load down, or go up. If the 338-06 AI trips your trigger, then go for it. Me, I'm more interested in hunting than worrying about a few feet per second one way or the other.

I have hunting tools that'll do the job now, a custom rifle is more a labor of love, no?

As for up or down, I honestly see no meaningful difference between a 225 gr. bullet at 2700 (which I should easily hit with the AI) and 2750, which is Hornady's factory .338 WM load.

Now, the one unfair thing there is both of those velocities are from a 24" barrel, where many .338 WMs have a 26" barrel. It used to be that magnums that usually sported a 26" barrel got to report stats from those barrels, but times have changed I guess. How long is the barrel on your lightweight .338 WM? Also, what contour? Heck, post some pictures! lol

Quote:
I could definately see the advantage to an Ackley over another wildcat though, if the caliber you were Ackleyizing was a common production cartridge. The 338-06 ain't though. The 338 WSM makes zero sense to me. I'd choose the 325 WSM over the 338 if that's what you're after.

The selection of 8 mm. bullets is terrible compared with .338. The .338 WSM may make zero sense to you, but to me it makes a lot more sense than the .338 Federal, or the .338 RCM. I wish Winchester would add it to the factory WSM stable. However, with modern bullets I think it's actually overkill for any NA game, except possibly the biggest bears. I'd still feel secure toting a .338-06 (AI or not) in big bear country, personally.

I'll fireform a couple hundred brass or so, and that should last me for, um, long enough. ;-) I might even just get some Weatherby .338-06 brass, so I have a headstamp and get some range time while fireforming. Otherwise, I'll use the "Cream of Wheat" method with .30-06 brass.

Quote:
However, there's a saying I've heard before, goes something like this. "To each his own..."

True enough. Here's to hoping you rack up many future trophies with your .338 WM. :-)

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#3128874 - 06/28/09 03:00 AM Re: .338-06 AI vs. .338 WSM? [Re: PreciousLiberty]
JBabcock Offline
Campfire Ranger

Registered: 12/07/02
Posts: 1515
Loc: Longbranch, Washington
My 338 has the factory 26" barrel. I don't use 225 bullets myself. I use 210 Nosler's for everything. Whitetails, Blacktails, Elk and Grizzlies. The 225 Nosler's I've handloaded have run about 2820-30fps. I could go faster, but I'd just be adding recoil.

Here's a pic of it and a small Whitetail I shot a few years ago.





It's nothing fancy, but it's very accurate. Chambers and ejects shells perfectly. I added a recoil pad and had some trigger work done. Most of the animals I've shot with it have dropped at the shot with the 210 Nosler's. The Grizzly I shot in September went about 50 yards and needed only one 210 Nosler.


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#3133283 - 06/30/09 09:47 AM Re: .338-06 AI vs. .338 WSM? [Re: JBabcock]
MightyPeace Offline
Campfire Regular

Registered: 05/23/07
Posts: 671
Loc: Alberta
Had my gunsmith last year build me a 338-06AI with a new barrel placed on a Sako m75 Greywolf. Shoots 225gr Accubonds @ 0.5" groups so far and thats just with new brass to be fireformed and break-in of barrel. Plan on trying 225gr TTSX's too. Gunsmith ordered me Redding dies.

Love the rifle. I posted last fall(November) a topic about my new rifle.

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#3133284 - 06/30/09 09:48 AM Re: .338-06 AI vs. .338 WSM? [Re: JBabcock]
MightyPeace Offline
Campfire Regular

Registered: 05/23/07
Posts: 671
Loc: Alberta
Had my gunsmith last year build me a 338-06AI with a new barrel placed on a Sako m75 Greywolf. I went with the Ackley version just to be different and by the reccomendation by my gunsmith. Shoots 225gr Accubonds @ 0.5" groups so far and thats just with new brass to be fireformed and break-in of barrel. Plan on trying 225gr TTSX's too. Gunsmith ordered me Redding dies.

Love the rifle. I posted last fall(November) a topic about my new rifle.

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#3133947 - 06/30/09 04:18 PM Re: .338-06 AI vs. .338 WSM? [Re: WhelenAway]
efw Offline
Campfire 'Bwana

Registered: 11/30/07
Posts: 11445
Loc: Mi.
Originally Posted By: WhelenAway
Quote:
The RCM is just an '06 in a short action that'll be a distant memory within a decade, IMO.



The case capacity is the same, so it's no surprise that the velocities are too (except in factory pixie dust loads).


But I've seen your quote before . . . oops, maybe it was

Quote:
The 284 is just a 270 in a short action that'll be a distant memory within a decade, IMO.
_


Yeah, you're right; time will tell.

Of course it does bear mentioning that the 284 lives on mostly as fodder for reloading its more popular necked-down wildcats like the 6.5-, or 25-, or 6mm-284s.

But you're right, time may tell a completely different story.




_________________________
I need a drink of something like water
I need a taste of love divine
Sometimes you just gotta do what you oughta
Sometimes you bring up the water when the well is dry

-Buddy Miller

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#3153423 - 07/13/09 07:04 PM Re: .338-06 AI vs. .338 WSM? [Re: efw]
Mississippi Offline
Campfire Regular

Registered: 02/03/06
Posts: 580
Loc: Jackson, MS
338 win mag is the origional short mag. no need ofr improvement

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