I recently purchased a. 257 texan with the intention to make a custom barrel to shoot from 100g to 115g the are a few good molds in that weight..what twist should I go with...if the 1-14 stabilize a 95g do the 1-12 be enough.. in my reading 1-10 have not worked good enough...Resterne have worked in a 1-7 but I cant find his final results...at least he mentioned that the mandrel is at tj .. so if it works I be able to purchase one .. gladly to hear what you know.
Airforce texan...257 custom barrel
- Thread starter mercado
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Based on this and the NOE 112gr looks like 1:7 might be the best option. Drop Bob a note and ask him what his experiecne was with the 1:7.
http://www.geoffrey-kolbe.com/cgi-bin/barrel_twist.cgi?diameter=.257&length=1.028&nose=.519&meplat=.077&base_diameter=.180&angle=&boat_tail=.182&b_twist=&secant_radius=6&unit_length=inches&temperature=59&humidity=0&local_pressure=29.92&pressure=29.92&altitude=0&density=11.4&custom_density=
http://www.geoffrey-kolbe.com/cgi-bin/barrel_twist.cgi?diameter=.257&length=1.028&nose=.519&meplat=.077&base_diameter=.180&angle=&boat_tail=.182&b_twist=&secant_radius=6&unit_length=inches&temperature=59&humidity=0&local_pressure=29.92&pressure=29.92&altitude=0&density=11.4&custom_density=
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