30-378 weatherby swift scirocco

Anybody have a good load for these two? Powders on hand rl 22, 23,25. H1000, imr8133, imr 7828 , retumbo . Gun weatherby mark v

So if you call Swift directly, they will likely give you the pet load for that rifle and bullet weight. I did this for the 300 RUM and 300 WM. I spoke with the actual owner (don't remember his name off hand) and he gave me 2 powders for each. Result was 10 shot sub .5 group for the RUM on the first try! That load held that tight out to 550yds and then I simply got dope out to a 1000 and put it in the case with rounds ready to hunt!!!

I only loaded 5 rounds up for the WM since I was only able to find 2 boxes and those shot great as well.

People say they don't shoot well so maybe this was luck but Swift was incredibly helpful and I was given A-Frame data as well but haven't loaded for that yet.

You didn't bullet weight. H1000 for lighter bullets and Retumbo for the heavies shot best in my 30/378. Good luck

Apologies 180 grain

Going by poor memory, when i shot the 180 in my 30-378, 122 grains 5010 would get you above 3400 FPS