Hello Everyone don't really know where to start. I had a Custom Rifle built in 257 Roberts,pics will be posted soon). It is built on a Remington 700 Long Action, Douglas air gaged barrel 26' long. The barrel is a 1:10 twist for the heavy bullets. Stock is from Richard's micro fit Exhibition grade walnut with the feather crotch. Stock has been fully bedded action trued and the whole deal. I guess my main question is have any of you messed with the 'Bob'. So far the best/most consistent load is a minimum charge of IMR 4350 behind a Sierra Spitzer Boat Tail. I have a 5 shot group that measures .320. But have only done it once seems like I always have a flier. I am really wanting to try some H4350. Like I said pics will be posted of the rifle soon any input would be greatly appreciated.