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Chronographing shotgun loads

6145 Views 5 Replies 5 Participants Last post by  unclenick
I shot through a chronograph with my shotgun a couple of days ago and read a startling number on one shell. I wonder how accurate these rigs are with a fragmenting mass passing through them. Anyone know about this?
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Yeah, I puckered up on the idea thinking I might have to buy the thing. I shot two different loads through it, and the first two shots were right on the money for the published data. Then the third shot, which was a different load entirely, including hull, powder, wad and shot size was fired through it. The expected speed was 1500 or so and it clocked in at over 1700. I hope that's wrong, because it was 1-1/8 oz of lead. That's rather brisk, even for Longshot data.
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