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  1. Terrible groups w/IMR4198 & my MarlinGS w/405 pill.

    The 45/70 Govt.
    Greetings; I've got a life time supply of IMR4198, and looking for "go to" loads with my custom 45-70-405 mold. All the groups seem equally poor from 30gr-40gr @ 100yds. They're tumble lubed in Xlox, unfilled, (although I tried cotton filler to no avail.), forearm supported at bench, slow...
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