Interested in first hand experience sending 130gr bullets down a 1-7.5” twist 6.5 creedmoor. 25” barrel range. Not interested in how it performs with heavier just the 130 class. Thanks looking forward to opinions.
Experience 130gr 6.5cm in 7.5” twist
- Thread starter Simonsza1
- Start date
Spife
Please educate me on the formula. Have Keystone going to spin me a 20” 7.0 twist 6.5 CM AR Krieger barrel, based on his recommendation to go 7 because of lower expected velocity from a 20” barrel-and blank is readily available. It’s not a done deal yet, but due up in a couple of weeks, so time to change if not sound reasoning. All of my other 6.5 CM’s run between 8-8.5 twist, with very acceptable results-just never done 7.0 on a CM. Appreciate any experience and/or guidance.
Please educate me on the formula. Have Keystone going to spin me a 20” 7.0 twist 6.5 CM AR Krieger barrel, based on his recommendation to go 7 because of lower expected velocity from a 20” barrel-and blank is readily available. It’s not a done deal yet, but due up in a couple of weeks, so time to change if not sound reasoning. All of my other 6.5 CM’s run between 8-8.5 twist, with very acceptable results-just never done 7.0 on a CM. Appreciate any experience and/or guidance.
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Calculating Bullet RPM — Spin Rates and Stability « Daily Bulletin
Most serious shooters can tell you the muzzle velocity (MV) of their ammunition, based on measurements taken with a chronograph, or listed from a manufacturer's data sheet. (Of course, actual speed tests conducted with YOUR gun will be more reliable.) <img src=http://accurateshooter.
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