243 or 6mm

7

7 REM MAG

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Hey all, I have a tikka heavy barrel varmint model in 22-250 that's getting to the end of its barrel life, thinking about rebarelling to something in 6mm and am thinking I should go with either of the above, any insight?
 
hoytcanon said:
If you reload go with the 6mm Rem... if you don't then go .243 Win.
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Pretty much sums it up. I've owned both and would choose the 6mm if there were more factory options or if I was building a rifle. Another interesting option if you reload is the 6XC
 
6mmRem is a great cartridge. Mine has taken 200 or so deer and as many coyotes and fox. Still accurate enough with Federal Powershocks to knock the head off a rooster in the coulee at 200m. No need to reload for mine as Powershocks are inexpensive and group a tight cloverleaf.
 
1899 do you have any more info on the xc? I've never heard of it.
While the tikka is still a long action and I could go with a x55 or 57, I already have a 270ai and a 7mm rem mag, making it kind of moot to have either of the two mentioned, also if I were to go with something in the 6.5 it would likely either be a 260 or something going much faster. In any event this rifle will be a multi purpose gun that may see the odd deer or antelope hunt which is why I want 6mm but will mainly be used for shooting predators and varmints. I do reload so I'll start looking closer into the 6mm rem. thx guys
 
The xc is based on a 22-250

ht tp://www.accurateshooter.com/cartridge-guides/6xc/

ht tp://www.accurateshooter.com/cartridge-guides/6xc-for-competitive-shooting/
 
My recommendation is the 6-284 it is the hell screamer of all 6mms and every one I have built has been super accurate. RCBS makes the dies and you can use Lapua 6.5-284 brass, for top notch brass quality and availability.
 
I had thought of the 6-284, but had been cautioned that with the tikka single stack mag it may be finicky to make feed properly, I took this as the truth as I have little knowledge of this chamfering and making it work in rifles like the t3
 
6XC all the way if you are reloading. Excellent cartridge, basically the same as 243 speeds, with less powder charge. You can make brass with 22-250 brass, amount others, or just buy Norma 6XC brass and away you go.
 
I assumed you had an older Tikka, not a T3. Here is another article on the 6XC:


http://www.6mmbr.com/6XC.html

Put a good barrel in similar profile to the one on your rifle in 1:8 twist and you should have a long lasting, easy to shoot rifle that will really reach out to long ranges.
 
1899..........you don't need a 1-8 twist in 243/6mm unless you intend to shoot 115 gn bullets. 1-9 will handle anything up to 105 grnrs. For primarily a varmint rig I wouldn't go faster than 1-9 as you give up velocity with sharper twists.
 
c-fbmi said:
1899..........you don't need a 1-8 twist in 243/6mm unless you intend to shoot 115 gn bullets. 1-9 will handle anything up to 105 grnrs. For primarily a varmint rig I wouldn't go faster than 1-9 as you give up velocity with sharper twists.
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Agreed. But I'd go with the new heavy bullets to take advantage of long range fun times and optimal with 105gr and up would be a bit faster twist. But it is true, if you want to stick to lighter bullets then go with a slower twist. But in that case why go to a 6mm?
 
I have 2 243s and are my coyote guns. 6mm will give a little more poop. If it is going to do bouble duty, I would go 6mm for sure. Both will do 500yd coyotes, but I like more knock down power for deer. I have had good luck with the 87gr Vmax.
 
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