boats, and others: I shoot the RCBS 300 gr in both my Browning 40/65 and my Shiloh 40/70 Straight. I had a horrible time finding a good load for it, and I still don't have one that uses straight black powder. In the 40/65 I use a duplex load of RL-7 and (of all things) Pyrodex P. It shoots great! I can't remember what prompted me to try this combination (probably desperation). MV is around 1400 fps. In the 40/70, a duplex load of RL-7 and Goex Fg is my best load with it, by far. MV is 1450 fps. These duplex loads are not allowed in Silhouette, but I use them for the offhand target at gong matches, where permitted. Recoil is very noticeably lighter with this bullet. Also, a comment regarding spotters. I don't disagree with most of the comments, but it is a 2-way street. Take a shooter who misses the ram to the left, and you tell him to put in 2 MOA right. On the next shot he now misses 4 MOA left!!!! What do you tell him? Did he move the sights the wrong way (very possible) or is he unable to hold a group? Trying to spot for a shooter who can't hold a group is just as frustrating as having a poor spotter. Similarly, when shooting, I don't like to be told, simply, which way to move my sight. How does the spotter know what I did while I was shooting? I much prefer the spotter to tell me WHERE my shot went, and then I can decide how much correction to put on. Especially for silhouette, there are only 4 targets, at standardized distances, and it's not hard to memorize each target size in MOA. Let's say I accidently pull a shot on the ram to the left, and I call it right off his tail. The spotter doesn't know I did that. If he tells me I missed the ram, 2" off his tail, then I know I'm OK and I'll probably leave my sights alone. But if he tells me to "come 2 MOA right" I'll have to ask for a clarification. I think the important thing is to work all this this out with your spotter before the shooting starts.
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