Hi guys,
I have decided to rebarrel my Win 670, it is currently a 22" sporter barrel 243win. I am fitting a 18-20" varmint profile barrel. A smith has reccomended i consider 6mmBR & 6x47Lap over 243win. His points were the 243 has high barrel ware and the other 2 have a smaller case capacity which will work well out of the shorter barrel. I have done some research on the 3 rounds and all the numbers make sence to go with 6mmBR or 6x47 lap but is it worth the extra effort over the 243?
What i can see is:
6x47lap has a higher cost of dies/cases and need to be formed
6mmBR isnt the best to feed out of a AI mag
243 is cheap to run but uses more powder
The rifle will be used at a max of 500m with most shots int eh 200-300m range with 75-87gr projies.
Any opinions?????
Seddo
I have decided to rebarrel my Win 670, it is currently a 22" sporter barrel 243win. I am fitting a 18-20" varmint profile barrel. A smith has reccomended i consider 6mmBR & 6x47Lap over 243win. His points were the 243 has high barrel ware and the other 2 have a smaller case capacity which will work well out of the shorter barrel. I have done some research on the 3 rounds and all the numbers make sence to go with 6mmBR or 6x47 lap but is it worth the extra effort over the 243?
What i can see is:
6x47lap has a higher cost of dies/cases and need to be formed
6mmBR isnt the best to feed out of a AI mag
243 is cheap to run but uses more powder
The rifle will be used at a max of 500m with most shots int eh 200-300m range with 75-87gr projies.
Any opinions?????
Seddo