i'll chirp in , as a Whelan user for the past ? 10 years or so.
I only ever shot 2 boxes of factories for Brass an they were 250gr corelokt variety, the drama down under is the price a box, $80/20 .
I began reoading with woodleighs 225gr and had good success on game shooting Deer over a Wirehaired Pointer an seldom were shots over 150m , as I got older I was across gulley shooting.
looking back the 225gr loads were about 1.5 MOA at BEST but I think it had more to do with the Ruger trigger (lc6) , the lack of bedding and the probable lack of free floating barrel (learnt this later).
since then I cracked a Ruger stock and swat it in a dirty ol Ramline stock , an have loaded up Hornady 250gr SP , an this is what I would call the bullet for the Whelen in my situation.
hunting the big deer in thick-ish bush, its awesome!
2400fps est in my min load of Varget out of the 22 inch tube, pass throughs at most ranges , not many go far.
I also used a variety of Woodleighs and Hornadys for Buffalo up In the Northern Terrirtory!
my only gripe is the overall weight of Rugers since I got a lightweight gun...
good for short hunts... or I jus need to man up!
WL