EKM

I've done my share of reloading including belted and non-belted and from 270 up to 416 Rigby and 458 Lott; however, I've never reloaded the Weatherby cartridges with the double radius shoulders....

For those of you who have actually done it,do the double radius shoulders make it harder, easier, or no difference compared to the"others" when it comes to reloading?

savagescout

I also have done alot of reloading from .223 to 7 ultra mag and belted mags. I have a 257 weatherby and it is no diferent reloading for it then other belted mags. At least so far I have not run into anything. I have been reloading for the 257 with the 7 remington mag brass. Just a pass through the 257 die and then fire form.

handloader1

EKM:

No difference except I neck-size Weatherby cases only.Good luck.

Pioneer2

Neck sizing is best provided they're being used in the same gun they were shot in.Less wear and tear on the brass..............Harold

johnny2

All of the above answers are true and accurate..

BarnesX.308

i reload for a 300 Weatherby. Have been for about 8 years it's no different than for the other cartridges I reload for.

Wolf killer

There is no difference.

I have never matchWeatherby's muzzle velocity with my handloads. I have shot factory ammo & my handloads head to head with a chronograph. I have handloaded for the 257-Weatherby & 340-Weatherby.
Weatherby ammo has always shot faster than my handloads.

handloader1

Wolf Killer:

Use Norma MRP. Go to www.norma.ccBlack Hills sells Norma Powders. I have a .340 Wby Mag., and I push a 250 gr bullet 3,062 f/s using 88.5 grs of Norma MRP (Don't forget to start MIN.) If you need data let me know I have a Norma booklet, and it has a page just for Weatherby calibers. Good luck.