300 PRC or 30 Nosler

I recently had a 300 win mag put together with a 28” barrel and during my research between the nosler and the win mag I found that they are nearly the same. I get 2900 FPS comfortably with a 225 eldm with my win mag. I don’t know about the prc. If you want as you said a big 30. I would say a 30 Sherman mag is the next step. I don’t think a regular 300 prc or 30 nosler have much advantage over a properly throated win mag. But maybe the same could be said for a properly throated 30 nosler. Win mag brass is cheaper and easier to find also imo. Just my 2 cents.

Appreciate your feedback @Viers

The decision was settled about a year and a half ago. Such is the nature of these long and never ending threads.

One of my criteria was no belted cartridges, which ruled out several, including the 300 win mag
 
@Orcon has a good thread on his .300 PRC build and I didn't want to muddy it with questions on my project so I thought I'd just start a new thread.

I don't own any magnum calibers so this will be my first. I'm going to be spec'ing out a custom hunting rifle with a non belted 30 cal and narrowed it down to 300 PRC or 30 Nosler. They're so close in performance that it's likely going to come down to very marginal differences in the brass. I thought it might be worth a discussion.

Case capacity H2O
Depending on where you look, they both have similar capacity
300 PRC - 90g-104g
30 Nosler - 85g-90g

Brass quality
I've never had a problem with either Hornady or Nosler brass.

Brass availability
I'm figuring Hornady to be more readily in stock but both companies are invested in these proprietary cartridges and both support the reloading market so the difference here may be small.

Brass/chamber design
The 300 PRC has a 30 deg shoulder, the 30 Nosler has a 35 deg shoulder. The necks are virtually the same length. Case diameter is the same. The 300 PRC is 0.29" longer

300 PRC
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30 Nosler
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View attachment 914715

Flip a coin?
Lapua makes 300 PRC brass so that would be a big point in its favor in my mind. I have no need for a big-chungus-mag™ so I don't really have a vested opinion on this so... Which ever one you can get a hold of brass or ammo easier would win your money.
 
Lapua makes 300 PRC brass so that would be a big point in its favor in my mind. I have no need for a big-chungus-mag™ so I don't really have a vested opinion on this so... Which ever one you can get a hold of brass or ammo easier would win your money.
I have seen a lot of Hornady 300 PRC factory ammo on my local stores shelves.

Not sure if that is an attractive option. Break-in ammo with reload able brass.

Just a thought...
 
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