300WM - How Easy is it to Reload?

mmh

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Jan 12, 2014
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I have never loaded any belted magnum. I am considering the 300 WinMag because the brass is far more available than that for a 300 RUM. How difficult is the 300WM to reload? I would plan on full length sizing (not just neck sizing). The case would be sized for a particular gun, and the shoulder pushed back just far enough to make sure that the bolt can easily close. I realize that this cartridge headspaces on the rim, but, by sizing it this way will the brass life & accuracy be increased?

BTW, I have allot of experience loading 308, so it's not like I have never reloaded before.
 

roninflag

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no different from .308. the 300 wm kick s more than a 7 . howeve r the 300 wm is more forgiving in finding a good load.
 

Dosh

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mmh, the 300 WM shoots the heavy Bergers very well. There are loads a plenty here on the forum. Good luck
 

Dgd6mm

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I just started loading for my .300wm. I collet sized my brass and will shoot it till my bolt starts to get a little tight, then set my fl die up with proper shoulder bump.
 

tbrice23

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Lightly full length size, just enough to chamber without a lot of resistance.

These have been sized this way 7 times and i have very little case thinning .
 

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bob4

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Lightly full length size, just enough to chamber without a lot of resistance.

These have been sized this way 7 times and i have very little case thinning .
Glad to see this. Just started reloading for this and it's the way I've been resizing also.
 

mmh

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Lightly full length size, just enough to chamber without a lot of resistance.

These have been sized this way 7 times and i have very little case thinning .
If this is the case, then reloading will be no different than for a beltless case. Good news!
 

Dgd6mm

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If this is the case, then reloading will be no different than for a beltless case. Good news!



I did not want to come right out and say it, but yes, from my research and understanding the case is headspaced off the belt when chambered. I bought a Lee Deluxe die set for the collet die. I chambered my once fired brass that was fired in my rifle, easy, peasy. I will collet size and shoot this brass till the bolt closure has resistance then I will full lenght size with no more then 2 thousandth shoulder bump. And this I believe is the best and accurate way for me.
 

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