Anybody have sources or data for handloading the 10 ga. 3.5" mag. to around 2 1/2 to 3 oz shot? This is for the Ithaca, NID (New Ithaca Double) magnum, serial number series of 500,000, made in 1932, to 1942, with 887 made, along with 87 in 12 gauge 3" mag. in series. Elmer Keith had the first one made, serial 500,000, originally owned by Charles Askins. He convinced me to buy one, in 1966, so I did, but later traded it as part payment on a Westley Richards double barreled rifle. Later yet, I bought another Ithaca NID 10, and still have it. Both of the ones I had (have) are in #2 grade.
