.300 RUM or .30-.378

Do you have a LM or Std Mag bolt face? Those two cases have different head sizes.

I don't call it the 30-37Hate for no reason.
300RUM for sure if you have the std mag bolt face. If you have LM bolt face, 300NM Imp. Or 30-338LM Imp.

Have the LM bolt face but that can be changed relatively easily. I could be wrong but I'm thinking going .300NM Improved or .30-.338 LM Improved could get very costly for dies. Although they do sound like more fun.

Left Hand Dave said:

Thinking I'm going to go with the .300 RUM. Will have to see how things pan out.

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If you are looking to seat out the Long Nose Heavy Bergers, you will need a reamer with .225" to .250" freebore.

Shooting/seating the long nose heavy Berger's out, turns your gun into a single shot, unless you use a UM mag, or 4" Wyatt's set up.

RUM---- EZPZ

With that action/bolt face, why not a 300 Norma/AI? Similar capacity to the RUM.

WeiserBucks said:

It's a Salvage, that's reason enough not to use it.

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Nothing wrong with Salvage…other than clunkiness, aftermarket support, and they can't make up their mind about "standard" sizes

300 Rum gets my vote. I don't have either haha. But just the fact that adg and Peterson make brass for the rum is enough to be an end of discussion for me.

I know Norma, Nosler, and hornady at least all make .30-378 brass and it's not junk but it's not at all in the same league as Peterson, Lapua, ADG, or Alpha, none of which make .30-378.

If I needed a case capacity advantage over the RUM and wanted to spend the money on a .580 (I think) bolt face and big receiver and pricey brass and all that jazz I would forget the .30-378 completely and do a .30-33xc. Bigger than the .30-378. No belt or curvy shoulder (not that I have a problem with those but they're superfluous at best). Peterson brass. Probably the last word in how much power can realistically be wrung out of a .30 cal hole. If I recall right Kirby Allen aka @Fiftydriver did experiment with a .30-408 cheytac and couldn't make it do what he wanted. Barrels shorter than 30 inches need not apply.

This is my 30/378, 12,1/2 lbs.
Medium varmint contour 26"
Terminus T4 muzzle brake
Recoil is comparable to a 300Wm 150gr.
If your going to shoot something like this you want some weight or you will nickname it 30-37Hate.
I might be talked into saleing it.
The target is at 300yds, 10 shots dialing in my scope, two 5 shot groups.
230gr Hybrid OTM