Thread: 6x45 pro's/cons?

Anyone running it that has any input on why or why not one might consider it?

Ive never had a 6x45 . .. but have considered a build many times.

The main thing that keeps putting me off is the "fit of the cartridge" to potential actions. It seems to me that most if not all "mini" type actions are too short in the magazine to do justice to the 6x45. If you go up to a short action there are other cartridges that will give superior ballistics. Currently Ive got a S&L in 223 and it has a very generous (for a mini action) mag length and 6x45 barrels are available as a factory option - but even at 61.5 or 2.42 its pretty limited compared with a 6 GT etc

As far as I’m concerned it’s all “ Pro’s “ and no “ Con’s”
My 6x45 is the Rifle that would be the one I would keep out of all my Rifles.
You are correct about the magazine length being an important component though to maximise it’s potential. I use a Tikka action and a Waters magazine that allows 2.6 inch OAL .
It’s a bit unfair to compare the 6x45 to the GT and bigger cartridges because your not comparing apples with apples.
Mine throws a 85gr Sierra hpbt at 2865 fps and is a handy combo that will level a lot of things at sensible ranges .

Here’s an old photo showing a Berger 87 gr and you can see how a long magazine is almost essential if you want to use 80gr plus projectiles in my opinion .

Would think cartridges like this have been made redundant by 6ARC.

I built one on a mini-mauser action.
I only use Sierra 70gn hp projectiles and they fit the mini mauser mag fine .
No idea on velocity but things fall over when shot with it and thats good enough for me.

Originally Posted by caberslash

Would think cartridges like this have been made redundant by 6ARC.

Yes, but I don't want to have to butcher the bolt face on the .223 and don't particularly want to buy a new rifle. I'd think the model 7 mag might be the limiting factor though but I haven't yet measured it (can't remember length of it)

Originally Posted by Preacher

Yes, but I don't want to have to butcher the bolt face on the .223 and don't particularly want to buy a new rifle. I'd think the model 7 mag might be the limiting factor though but I haven't yet measured it (can't remember length of it)

You should be able to find useful info on mag length modifications on the net for the Model 7. I've owned two & still have one, both were Sako 223 in a previous life. Brilliant easy to load for accurate round with plenty of power. I use 75gr & 85gr Sierra HP.

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I'm not sure there's any real advantage over the .223. In a constrained mag where you can't shoot any high BC 6mm bullets it may be worse than .223 in reality

Originally Posted by Mathias

You should be able to find useful info on mag length modifications on the net for the Model 7. I've owned two & still have one, both were Sako 223 in a previous life. Brilliant easy to load for accurate round with plenty of power. I use 75gr & 85gr Sierra HP.

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The Sakos 6x45?

Originally Posted by gimp

I'm not sure there's any real advantage over the .223. In a constrained mag where you can't shoot any high BC 6mm bullets it may be worse than .223 in reality

Yeah I get that Gimp, just floating ideas. Another option I had considered is 300blk because I just about only bush stalk. And have .243 for the slightly longer spots.

I had all the parts to build one about a decade ago, dies, etc - but ended up not bothering

I’ve got one a Cooper 51, I’ve got a couple MM more length than Sako or CZ mini action 60 mm I think,
Shoots great, 75 Hp at 3100 ish, 80 Blitz at 2900, 85 g at 2850, seams to kill goats and fallow just fine.
For any given weight, it should be a 100 fps faster than a .223,
I’ve had mine for ten plus years. Few kills racked up now.
Not sure if there as any real gain, over the fast twist .223 now, weren’t very common when I got mine,
6PPC, 6 ARC, 6x47Rem, all slightly better performance, but expensive Brass, .223 brass is pennies on the dollar.
I like mine, and would be one of my last hunting rifles to go.

Having said that, I would love a Fast twist .22 PPC or 22 ARC, cover a lot of the same ground, as the small sub .243 6mm ground, with cheaper .22 cal high bc bullets.

Originally Posted by Preacher

The Sakos 6x45?

Yes, with a Bartlien 1:8 20" barrel.
I only use up to 300m, mainly goat control but it is my venison gun too. I have a mag limitation to 58.5mm, so it was the perfect option for me & not likely to change away from it. Been shooting a 6x45 for over 10yrs now.
Sure the BC of the Sierra's isn't as flash as Hornady .224 ELDM but it doesn't matter up to 300m.


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like the rifle, love the dog!

Thanks for the input folks, looking at availability of dies etc I will probably be better off just getting a faster twist .223 barrel if it doesn't end up .300blk.