Maybe dumb, maybe not. Every year sometime after turkey season I break down my son's 20 ga. mossberg youth from its turkey set up for him or another kid to use for dove, quail, duck and whatever else might be pursued when its not turkey season.
When it's set-up I have a .555 Pure Gold choke and a Tru-Glo rifle-style fiber optic sight on it. I have done this for 2 years running and am getting a little tired of spending big $$$ to sight it in again with the Fed Heavyweights we use.
My question to the ever-wise board: If I use say bird shot in 7-1/2 or 8 to get close on the sight-in after reinstalling the choke and sights, will I get a good idea as to POA/POI, walk the sights in, then switch over to a couple or three of the "expensive" shells to verify POA/POI? Anybody else do this? I know they are totally different shells, loads, velocities, etc. and will be different, but I have to think that it might get it close at say .25 cents a shell rather than $4 each...
I have been happy in years past with patterns, just not with the number of shells consumed in getting it sighted back in. Thanks in advance for help and advice.