loads
Let's say you work up a batch of reloads, say 243's, 4/5 rounds of each weight, stepping up 1/2 Gr. at a time. As well as watching for signs of pressure you should also watch what's happening down range on your targets. I've found once I get past the mid range of load weights my shots always start to open up. I don't even bother to going higher then about 3/4's way up to max anymore.
Another point I would make is temperature can have an effect on pressures. Those max loads my be fine the day you shoot them put what do they look like with a 30 degree temperature swing.
If you want 300 Win Mag performance buy a 300, don't try to load our poor old 30/06 to try and get it. At some point it's going to show you how much it doesn't like the abuse.
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