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Old October 16, 2018, 05:43 PM   #11
Grant 14
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Join Date: February 10, 2018
Posts: 167
My Lyman #44 manual (yes I know its old) gives starting loads of 31 grs of 4064 and max of 41 grs for both 155 gr gas check and 173 gr gas check. I had read that the Oregon Trail bullets could be shot at gas check speeds without any leading. I chose to start with 34 grs 4064 as a sort of middle of the road. 60 yds doesnt seem too close when the bullets are not even hitting the target. When I moved back to 30 yds and shot 3 each and got no sort of group out of each batch I figured something was wrong. I got the same sort of erratic shots using 3031 also from the Lyman #44 book. I used the same powder charge of 3031 since the starting and max were close to the same as what was given for 4064. As far as slugging the barrel goes, the .308 and the .310 seemed to be equally bad. I called Oregon Trails and wont be able to talk to their tech until Friday. Maybe he will have ideas for me. Thanks Grant.
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