Hey SUS. Your in clover. Win.760 & H-414 same powder, different label. Go for it.For some unknown reason Win760 and Win748 are just not available. I have spent hours checking gun shops around the country to no avail but if H 414 subs, then I'm in clover.
Hey there Biggie d. I live & shoot on my own range at an elevation between 7600' & 7700' . Have shot & chronographed many powders in various cal's with no problem. That includes all of the various 4350's. I have shot these loads at lower elevations & higher with no problems. These loads have been shot in summer weather & very cold winter hunting situations. No problems. Hope this helps a bit.I have thought of using the IMR 4350 but not sure how well it works in climate or altitude change.
If you have a rifle with a wood stock where the barrel is bedded against the wood this can be a problem. Wood likes to move around with changing elevations & moisture conditions. This moves the barrel, sometimes a lot. Under this situation free float the barrel. If your barrel is already free floated your in good shape. But "No Matter What" as others have said recheck your zero after you arrive.Thank you it all helps I live in Indiaina but am going to be hunting in Colorado so I was concerned about the change.