COpredator
Member
I have a savage model 12 fv that i want to re-barrel with a 1 in 9 twist. My question is, who has one and how do you like it? I was wanting to shoot the 75gr a-max and possibly the 75gr berger
Jacko9 said:I don't understand fast twist 22-250 rifles, in my opinion their strength is with slow twist barrels pushing small projectiles at light speed, in my opinion, if you want use a fast twist 22-250, a 243 becomes a much more viable option, a better range of projectiles, traditionally with better ballistic co-efficients than .224's, as well as this, you have a better "range" ie, varmint, target, medium game, bonded, etc.
Just one mans opinion.
Regards,
Jackson.
The BC is exactly why fast 22s do make sense.
As an example..
69 gr 224 Dia Sierra Match King BC of .301
70 gr 243 Dia Sierra Match King BC of .259
Now, having said that, I do like both aspects of a 22-250 (or other larger capacity 22) small bullets at great speeds are great. But so are wind bucking high BCs at still good speeds. Just my opinion on this. They both have their place.
Your example is a little stacked in the favor of the 224. caliber. If you really want to compare apples to apples you would need to compare heavy for caliber 224 and heavy for caliber 243.
.224 Sierra
69grsmk= .301bc
77grsmk= .372bc
80grsmk= .420bc
90grsmk= .504bc
.243 Sierra
95grsmk= .480bc
107grsmk= .527bc
As you can see there is only one bullet with a higher bc in the .224 caliber than the two listed for the .243 caliber.
What does all this mean? Nothing at all as far as I am concerned. The heavy bullets will certainly perform better at longer ranges for both calibers vs. their lighter brethren.