Anyone have chrono numbers for a DTA SRS in .308 win, 26" barrel, 1:11 twist shooting Federal Gold Match 168 SMK. Any numbers would be helpful trying to upload some numbers to my ballistic calculator.
Here are some data for the 22" 11-twist barrel. If you add 80-100 fps to any of them, you should be very close to the values you should expect with your 26" barrel. See the following link ~1/3 down the page:
Ironically when we chronoed our 22" and 26" barrels with factory ammo shooting 175 SMK's then there was only a 10 fps increase on average with the 26" barrel.
Thanks for that info Nick. That result would suggest the effect of increasing barrel length on MV is approaching its maximum in the 22" barrel. Good to know.