Looking through my info I have stashed away here, found this in an email from ADI.
This is the list of exact equivalents between ADI and Hodgdon - ie these Hodgdon powders are made by ADI
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<tr class="tableizer-firstrow"><th>ADI Sporting Powders</th><th>Hodgdon Powder Company</th></tr> <tr><td>AS30N</td><td>Clays</td></tr> <tr><td>AS50N</td><td>International</td></tr> <tr><td>AP70N</td><td>Universal</td></tr> <tr><td>AR2205</td><td>H4227</td></tr> <tr><td>AR2207</td><td>H4198</td></tr> <tr><td>AR2219</td><td>H322</td></tr> <tr><td>Bench Mark 2</td><td>Benchmark</td></tr> <tr><td>AR2206H</td><td>H4895</td></tr> <tr><td>AR2208</td><td>Varget</td></tr> <tr><td>AR2209</td><td>H4350</td></tr> <tr><td>AR2213SC</td><td>H4831</td></tr> <tr><td>AR2217</td><td>H1000</td></tr> <tr><td>AR2225</td><td>Retumbo</td></tr> <tr><td>AR2218</td><td>H50BMG</td></tr></table>
