Thread: 300win mag, 300prc, 300rum, 300norma vrs

Been looking around net about Getting info modifying my 300win mag project rifle into 300prc or any of other caliber with a tad more punch or able squeeze in longer projectiles, any advice or preference to shoot a mile plus with a preferred round ?

300 rum for me. The 300 prc has my interest and looks sexy but till Norma or lapua makes some brass I ll be hesitant to head that way.

Dont discount the 30 nosler either, wicked cartridge

The Norma cartridge is based off the 338lapua case which means you can probably cross that one off your list. Bolt face would need to be opened up and the ammo wont fit in most 300win mag class magazines as its too fat. You really need a 338lapua class rifle to make a 300norma properly

Dont dick around just buy Andys 338 lapua thata for sale

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Originally Posted by daleo71

Been looking around net about Getting info modifying my 300win mag project rifle into 300prc or any of other caliber with a tad more punch or able squeeze in longer projectiles, any advice or preference to shoot a mile plus with a preferred round ?

ADG is making 300 PRC brass: https://atlasdg.com/product/300prc/

When you are shooting at that distance I think the 338's would be better. The fast 30's would be hard on barrels, the Rum you might get a 1000 rds depending how hot you get it, mine doesn't take many to heat it up. Is this for shooting steel or game?

fuck all those pea shooters what you want is a 416 Barrett

Ah,never seen one of them before.
I think you are correct.
That's what he needs

Originally Posted by 199p

Dont dick around just buy Andys 338 lapua thata for sale

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Yes hopefully that works out, may just keep the win mag chamber standard if I get that

Originally Posted by ChrisW

The Norma cartridge is based off the 338lapua case which means you can probably cross that one off your list. Bolt face would need to be opened up and the ammo wont fit in most 300win mag class magazines as its too fat. You really need a 338lapua class rifle to make a 300norma properly

Yes that’s true does need a bigger action, did some more research good point cheers

Originally Posted by Mooseman

When you are shooting at that distance I think the 338's would be better. The fast 30's would be hard on barrels, the Rum you might get a 1000 rds depending how hot you get it, mine doesn't take many to heat it up. Is this for shooting steel or game?

Thanks starting to think that also, just for target shooting and plinking, hopefully go down south try some of those longe range comps at sparrow hawk

Originally Posted by daleo71

Thanks starting to think that also, just for target shooting and plinking, hopefully go down south try some of those longe range comps at sparrow hawk

If thats the case then I think it would be wise to factor in barrel life and the amount of powder used.
I had a 300 rum, hated watching the powder thrower rapidly depleting
Apparently the barrel had a fair bit of throat erosion and fire cracking after 250 rounds.
You need quite a few rounds for some of those comps also.

Came across this in a search. I run te 338 Lapua mags with my 6.5 PRC as it sits the round higher in the mag and has shorter feed lips and works way better than the 300wm mags. This is obviously I’m using a long action for my PRC and using very long heavy bullets, the Lapua mag allows the Bullet to hit the feed ramp higher and feeds much better. The same would be for the 300 PRC and the 300 Norma.

30nosler if you reload 300prc or 300win mag if factory ammos the go