Oliverstacy: Thanks for the offer. But I was able to up my supply by trading my brother H4831SC for WMR. If it works out to be a good replacement for WW785 I will manage it until I go to the happy hunting grounds. If it doesn't I will regret trading away the H4831SC. One of the problems with Winchester's "short lived" powders is the reloader does not have the benefit of published loads in the major reloading manuals. At the time Winchester dropped WW785 I called Lyman and asked them some question regarding Winchester Magnum Rifle powder. Lyman told me they planned on developing some data for their next addition. I believe Winchester dropped WMR before the next addition was published. Or I have missed seeing the data. I need to find a copy of Hornaday's 6th addition. I understand it may have some WMR loads in it. I missed that one because I bought a Speer Manual.
My current data is from a Winchester data sheet, published data from magazines in from Dr. Smith's web page. From what I have seen in Handloading magazines WMR is a good powder.
I expect good results from the WMR from the limited information I have been able to find.
lilabner: I have done a little loading with good results with IMR4350, but I have never loaded H4350. I thought I would call my brother who burns powder by the jug. He said that he mainly uses AA4350 and H4350 because he finds the best deals on those powders. He does a lot of shooting year around. He is the guy who breaks a track in the snow at the local range. He has not noticed any big differences in performance in 32 degree weather. But his Chrony has never been the same since he put a 45 ACP round threw it. During the period that I experimented with IMR4350 I did not have a Chrony.
A few years back I bought a good supply of "discontinued" old style Winchester 140 grain, boattail Silvertip bullets. They are beautiful. Years ago I read an article in a magazine regarding loading them and field results. When I had the opportunity to buy enough for load development and long term hunting I jumped at the chance.
The delay has been post retirement employment, and loading for other calibers.
[/i]Edit on 4350. While I had good results with the limited amount of IMR4350 I burned and some hunting friends swore by it, I went another direction. Years ago I obtained a jug of H414. I have just about burned it up. But there is more to had. I understand that depending on the lots H414 and WW760 is basically the ball powder replacement for IMR4350. From the charts it maybe slightly faster then IMR4350. It is a great powder to load with. My son-in-law and I load it for his 30-06, and I use it for my 80 grain loads in the .243 Winchester. The powder produces accurate loads in the 30-06 and the .243. I have never shot these loads over the Chrony. I doubt that I would change anything if I did. The loads are accurate, and the ball powder flows better for reloading. This is from a guy who loves stuffing H4831 down a case.