I only have 61 of the 311284s left.  I need 55 to shoot in a practice match at a nearby club, so only one more 6 shot test group before that.  If I get a 100yd zero, I should be able to get on target at 200 with little problem.  I rounded up cases for the load that vary +/- 1gr and the remaining bullets vary a total of only .5gr, ranging from 204 to 204.5.  I'm figuring 38gr will be the magic number, which should still yield around 2000fps.  That's the area I got good accuracy with the 311365 and some other bullets I cast of the same alloy, using the $26/lb RL19.  May as well spend the day getting them loaded.