I’m shooting a 5.56/.223 1:8 twist 16” barrel was wondering if anybody knows what the ballistics are for Winchester match 69 grain bthp everything I’ve found is tested with 20” or 24” barrels. I appreciate the help!
Need a chronograph or its a guess without shooting at various yardage. He got 2735 fps. Good Luck shooting https://survivalblog.com/2015/07/20/scots-product-review-winchester-ammunition/ Found this from a 16" barrel AR. I had 40 rounds of each load, and all functioned perfectly with no failures. Muzzle blast and flash were typical of .223 ammunition fired from this sort of rifle. The testing was done in an indoor range, and flash was well contained by the Yankee Hill flash suppressors mounted on both weapons. I would have liked to try a few rounds in total darkness, but I don’t have access to a range at night at the moment.
The 69 grain load has the following ballistics, according to Winchester:
I got an average of 2,735 feet per second at the muzzle out of the 16-inch barreled AR’s, which makes me think Winchester used a longer barrel for their figures.
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