Doesn't sound out of line at all, based on Vihtavouri's data.
They show a starting load of 20.4 at 1,427fps and a max of 22.1gr at 1,547fps from a 7" barrel.
You'll probably lose about 200fps from 3" of barrel, which would put the max load at about 1,347 in your gun and you say you gain about 20 fps per 0.5gr... you're two steps below max, which would be another 40fps.... 1,340fps at max load.
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Last edited by Brian Pfleuger; March 20, 2013 at 09:31 AM.
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