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What Cal?

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Old 04-21-2006, 02:21 AM
Silver Member
Join Date: Mar 2005
Location: Australia
Posts: 177
What Cal?

I currently own a .25-06 AI in a Sako L691.

Although It still has a couple of hundred rounds left in it I have been latley been thinking If I should stick with this cal when the barrel wears out.
I mostly shoot foxes, rabbit, hare, goat and pigs with this rig out to ranges of 400m and beyond.
I would like to go heavier and bigger to extend my killing range.
I was looking into a 6.5-06 AI but the more I look around the more I change my mind.

So the question is what should I be looking at getting?
And yes I want to keep and build off the action.

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Old 04-21-2006, 04:31 AM
Platinum Member
Join Date: Jul 2002
Posts: 2,856
Re: What Cal?

Skip seeing how you already have all the loading equiptment fro the 25-06 I don't see any reason to change , its a good caliber and obviously has served you well if you like it.
If your wanting to extend you killing range you could get some of the ULD type bullets that Kirby Allen uses to get suck amazing range from his 25 cals they are heavy for caliber and have a high BC. you could even have the gun chambered for the 25Gibbs that would give you a little more powder to boost the velocity some.

Now the 6.5-06 is a great choice also I personaly would choose the Ai version to help with case life. This caliber launching a 142gr SMK at around 3000fps would put youn in the 1000yd club for the smaller varmints , not to sure I'd shoot a pig with the SMK at that range but 500 would not be a problem. I've shot them with up to 250lbs and out to 500yds with a 175gr SMK out of a 308 win and made all one shot kills.
and for the samller varmints inside the 500yds range the 95gr V-max makes an awsome high velocity round , major splat factor!!

Heck , I'm not sure what the volume of sahooting you do is but the 280Ai sure has some good balistics with the 168gr match type bullets and this would extend you killing range greatly on your bigger critters.
Hell , sound to me like you need to rebarrel your Sako and buy another smaller varmint rig fro the little critters [img]/ubbthreads/images/graemlins/grin.gif[/img]
but another gun is my answer for everything
Si Vis Pacem Parabellum
Molon Labe
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Old 04-21-2006, 05:30 AM
Silver Member
Join Date: Mar 2005
Location: Australia
Posts: 177
Re: What Cal?

but another gun is my answer for everything

[/ QUOTE ]

Same here but Ive had some car troubles latley which has taken my "spend on new rifles" money.
I have thought of the heavier bullet choices but IMO they dont gain a great deal, Im looking for a calibre that is significantly better than the .257 interms of BC, weight and velocity.

Im leaning towards a Larger hole anyway, I like .308 size but to gettem goin good it takes a tin of powder [img]/ubbthreads/images/graemlins/smirk.gif[/img]

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Old 04-21-2006, 07:35 AM
ATH ATH is offline
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Join Date: Oct 2003
Location: Lizton, IN
Posts: 544
Re: What Cal?

The laws of physics dictate that if you want to go with a .30 you're going to have to burn more powder and take more in the shoulder.

For your purposes, honestly it sounds like you are well-served with the .25 or 6.5mm.
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Old 04-21-2006, 07:50 AM
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Join Date: Jun 2004
Location: Fort Shaw, Montana
Posts: 6,807
Re: What Cal?

Skip AI,

Dont equate bullet diameter to killing power at long range. Sure it has something to do with it but for the size of game you would be hunting, the 6mm is a great option as well.

I assume you have a standard twist 25-06 AI currently. If you went with a 1-9 twist 6mm-06 you would see a ballistic improvement using bullets such as the 105 and 107 gr bullets. I would use the 105 A-Max for smaller game at long range and the 107 SMK for the heavier game.

Ballistically, a 6mm-06 loaded with a 105 gr to top loads will ballistically smoke a 100 gr out of a 25-06 AI at long range.

If you want to stay with a 25 cal or larger, there is nothing wrong with the 25-06 AI but I like a fast twist barrel instead of a standard 1-10. Wildcat Bullets makes some amazing 25 cal bullets. Starting with the 125 and 130 gr ULD RBBT and going up to the 142 gr ULD RBBT. There is also the 156 gr ULD RBBT but I personally feel this is to much bullet for the '06 AI other then for paper punching.

The 142 gr ULD RBBT will offer higher BC then a 142 gr in the 6.5mm will and velocity will basically be identical. Just an option if you want to stick with the 25-06 AI since your already set up for it to load for.

All you need is a 1-8 twist barrel and your on your way. You may be able to get away with a 1-9 but there are not that many out there and at the 25-06 AI velocities with the big 142 gr ULD RBBT I would personally go with a 1-8.

The 6.5 and 280 versions are also great. The 280 needs quite a bit more bullet weight to be ballistically effective but barrel life increases as well, so does recoil so if you will be shooting alot, keep this in mind.

Good Shooting!!

Kirby Allen(50)
Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

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Old 04-21-2006, 03:18 PM
Gold Member
Join Date: Dec 2002
Location: mathias wv
Posts: 985
Re: What Cal?

what about the gibbs line of cartridges, I've heard some impressive things about the 6.5 gibbs.
Born to Hunt, Forced to Work!
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Old 04-21-2006, 07:21 PM
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Join Date: Jul 2004
Location: SW MO
Posts: 1,154
Re: What Cal?

Aren't the Gibbs rounds formed on the 30-06 case with the shoulder pushed forward and a shorter neck? I read somewhere that case forming is more complicated than just fireforming due to this. I wouldn't think that performance gain would be enough over the AI to justify more expensive dies and more difficult case forming.
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