doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com Patterning a .410

Note that "IF" one got absolute uniform shot distribution a 40% pattern at 40yds would produce a 71% pattern (30" circle) at 30 yds while it would only take one of 24% to give the 61% pattern. since patterns are normally denser in the center these would likely pattern better than these figures at 40yds.
If you look at Devrep's actual patterns you will quickly see the pattrns in the 20" circle at 25yds are much more indicative of the choke constriction than those in the 30" circle. The purpose of using the 30" circle at 25yds for a "Skeet" gun are just that, to indicate the best coverage at skeet ranges. As pertains to actual choke percentages a .410 should be patterened in the 20" circle at 25yds. A check at 40yds with a .410 is for the most part useless. A 20" circle at 25yds is proportionate to a 32" one at 40yds while a 30" circle at 25yds is proportionate to a 48" one at 40yds. "Think" people "Think"!! I don't even own a .410 & don't want one, but they're not so bad as to give the same percentages in the same size circle 15yds closer in (5/8 of the range).

Rocdoc,
I had a Uggie .410 that had .022 in both barrels. I never patterned that gun in the year I had it, but it busted clays well. I wonder if it even had tighter patterns than a .012 or so choke? Or was it starting to affect it the other way?

Jack O,Connor's "Shotgun Book" says 30 yards. He also has an excellent two page article about 10 yard patterning. I'll be happy to copy it to anyone who sends me a direct e-mail(so I can attach it to your direct e-address)
JL