Hey guys. I have been searching for info on the 168 SMK and what velocities the bullet is most accurate at. I'm coming up short so have decided to tap into the infinite wisdom of CGNuters. There are always a few velocity nodes for a given bullet weight and diameter that provide excellent results. I realize that changes with conditions but a general number is close enough. I can fine tune that number with hand loads to the current condition. For example the 6.5mm 142 SMK excels at 2950 fps more or less...
I'm building a light weight rifle in 308 Win for a little experiment with components I already have, except the barrel. I have to keep the barrel contour light (Remington Standard Contour) to fit the stock and want to keep the length short"ish" to maintain stiffness. Around 22" I was thinking with a 1x12 twist or perhaps a 1x11.25 so I have the option of shooting the 175g bullets. I want to know if I can reach the optimum velocity nodes with a 22" barrel. Target accuracy inside 500 yards is my priority. The rifle will be used for hunting as well but I'm not concerning myself with hunting performance. What ever barrel I screw onto the custom action and hunting bullet I choose will give more than adequate hunting performance on the game I'd likely be hunting for.
Thanks.
I'm building a light weight rifle in 308 Win for a little experiment with components I already have, except the barrel. I have to keep the barrel contour light (Remington Standard Contour) to fit the stock and want to keep the length short"ish" to maintain stiffness. Around 22" I was thinking with a 1x12 twist or perhaps a 1x11.25 so I have the option of shooting the 175g bullets. I want to know if I can reach the optimum velocity nodes with a 22" barrel. Target accuracy inside 500 yards is my priority. The rifle will be used for hunting as well but I'm not concerning myself with hunting performance. What ever barrel I screw onto the custom action and hunting bullet I choose will give more than adequate hunting performance on the game I'd likely be hunting for.
Thanks.
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