The old speer manual I had (I don't know what edition but it was sprial bound) shows the following with .250 grn bullets in a 22" bbl.48/4064/2440 - 46/3031/2440 - 49/4320/2403 - 45/HV2/2443 also 49/4895/2397 and 45/BL-C/2315
These were coronographed in a Win. Model 70 with 22" bbl.
The 53 grn load of 748 was in the barnes second edition and third edition. I shot numerious loads in my blr. with no problems but it always made me nervious as it filled the case neck about 1/2 way up.
There is an two part article about the .358 by Packo Kelly atwww. sixgunner.com very intresting read, says he shot an elephant with the .358 win. gives lots of loads, information, comparisons with other cartridges. You oue it to your self to read it. I'm not a glob trotting hunter so my experience with the .358 blr has been limited to two elk, one moose, 26 blackbears and about 3-4 dozen deer and wild hoigs. All I know is when I hit something with a .358 it goes down right there ! and I've never had to track anything.
I have owned and hunted with the following .358's: Savage 99 A.Winchester .358,Custom Ruger 77 with 22" shilen bbl. and 3 Browning Blr's with the steel reciever. I now only own1Browning blr. I think it is too much for deer even with 200 grn hornadys, IMHO I think the .225's are a compromise, but too tough for deer anything they do the .250's do better on larger gameThis is actual field experience talking. Bear hunting is my passion and I taken a number of 500 lb + bears, weighed not guessed. The .358 continues to amaze me at how it puts them down plus the moose and elk.