Reloading belted mags

[cjp45]

I have never reloaded belted magnums before. Is it any harder to do and what are the differences in reloading them compared to standard case rounds? I'm thinking of buying 300 Win. mag and difficulty of reloading will keep me from doing so.

[joe21a]

They reload pretty much the same once you get the dies set up. They do need a little more power on the arm!! Mostly because of their lenth and size. Only a little harder than a 30-06.

[Blue-Dot-37.5]

They are a bit harder to get set-up in the beginning. I have a .257 Wby, and if there is any excess lube on the case it will dimple the shoulder. If you take time to set up the dies, and take good notes, it really isn't any harder than regular brass. I am using a RCBS Rockchucker Supreme press with Redding dies.

If the brass is only going to be fired in your gun, once you full length resize them it's easier just to resize the necks. Keep an eye on case length and trim when necessary.

Blue-Dot-37.5

[Swede]

ditto with joe & blue.

I have reloaded 7 rem mag & 300 win. setting up dies is the part with little difficulty. As easy as non-belted cases.

I also use Imperial sizing wax.

[cjp45]

Thanks for your help guys.

[Douglas Blair]

If you were thinking the belt on the case would cause problems it don't because a recess is machined into the sizing dies. The magnum is suppose to headspace on the belt but most headspace from the head to the shoulder. Since the magnum cartridge cases are larger and usually longer they tend to "grow" more when full length resized. Make sure you keep an eye on the length of the cases and trim when necessary. Also keep an eye out for split necks and partial separation just in front of the belt. If you get a partial separation in front of the belt try backing the sizing die off just a bit so you are not pushing the shoulder back and only use the ammo again in the gun it had been fired in.