300 PRC or 30 Nosler

Preeeety sure Zeus would use a plasma rifle......

I would think about the bullet and the gun. I suspect the PRC case will be better for the longest, lowest-drag bullets, but those aren't necessarily the right choice for hunting big game. I wouldn't be buying a custom barrel on a custom action for a custom rifle. I'd be buying off-the-shelf complete rifle or at the most a complete barreled action, so the whole rifle package would determine a lot for me. Even if you did go further custom, what are the twist rates on off-the-shelf barrels? Again, I'd suspect the PRC will be oriented toward the really high BC match bullets, and the Nosler a little less so. If you're not shooting 212 to 250gr bullets, do you really want a 1:8 twist? Nosler sells their 30-chambered rifles with 1:10 twist. Of course if you're chambering a 30 caliber barrel blank, you can order whatever you want.

Nature Boy said:

https://russoriflestocks.com/

I’ve talked to him about making one with some nice wood, classic hunting rifle lines



Ok, I gotta think about that

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Nice, to pricey for me. Should look good.

@Nature Boy

I am excited to see how this turns out!

Texas10mm said:

I gotta ask, why?

Do your current firearms lack range? Killing power?

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Why not?

I don't want to start a war here, but would like to learn.

What is the advantages of the 300 PCR or 30 Nosler over the 300 Winchester, 300 Weatherby, or RUM?

If it's that they are cool or new or different that's cool. Just curious.

Nature Boy said:

will likely go with the 300 PRC in SAAMI configuration

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Pretty much the route I went except I'm using a 9" twist barrel instead of the SAAMI spec of 8.5" I'm going to make use of that freebore too .

Since I have a nice .300 Weatherby I have no horse in the race BUT the PRC sure looks like the better case all around
#1 it's bigger and that is what you seem to want
#2 the longer neck would support huge long torpedoes better
#3 I like the 30 degree case better than the 35 degree because in my history they feed better and 30 degree is plenty to get uniform powder burn IMHO
#4 did I hear you say the .300 PRC is formed from .375 Ruger brass ? Thats a win !
# 5 see if you can get a 1-9" barrel . I did a twist study years back and remembered that for the 240 grain Sierra Match profile bullets available at the time 1-10" was iffy from .378 Weatherby case I was looking at . A fast twist woukd have no real downsides if you stayed above 160 grain Match type bullets or so. .

Yup 26" + a comp ! Have the 26" threaded 5/8" fine for attachments. To burn 90+ grains you need a 26" minimum , and you will be wanting a :

I like those vg6s, Ive used a few of them.

Nature Boy said:

The 300 WM and 300 WBY are belted cartridges. Don’t want that.

The 300 RUM is just too big and too overbore

I’m really leaning toward the consensus opinion here and will likely go with the 300 PRC in SAAMI configuration

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Thanks for the response. I can understand why you don't want the unnecessary belt. The rum I can see that to.

Thanks for the response again and have fun with the new rifle. Safe shooting .

Maybe a good project to try a gan twist barrel. Ending In 1-8 or 1-9.

@Nature Boy I picked 9 twist based on information from Dave Tooley over on the Hide. Basically a 9 twist will do everything you need unless you're shooting in arctic coast climates.

I have a Sendero in 300wm I want to change the barrel on and been looking at a few Magnum options. I will go with 300 PRC because I think its popularity will increase and more brass/tooling options will be available. A few gun manufacturers are already offering 300PRC. Good enough for me because performance wise you are splitting hairs.

Out of curiosity

Orcon said:

@Nature Boy I picked 9 twist based on information from Dave Tooley over on the Hide. Basically a 9 twist will do everything you need unless you're shooting in arctic coast climates.

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I'm curious what the benefit of changing to 9 twist from the SAAMI standard of 8.5 for the cartridge would be? Is it a blank availability issue?

Nature Boy said:

The 300 WM and 300 WBY are belted cartridges. Don’t want that.

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I can understand not "wanting" a belted cartridge but I want to add that there's nothing wrong with belted cartridges in terms of accuracy, precision and reliability. I shoot an Accuracy International chambered in .300 Win Mag and a Kimber Talkeetna chambered in .375 H&H and they're both outstanding in terms of the variables mentioned. That said, it makes perfect sense to build something today chambered for the modern 300 PRC rather than the 70 year old .300 Win Mag.

I'm assuming that the felt recoil from a hunting weight rifle chambered in 300 PRC will be somewhat less than that of a .375 H&H.

Gtscotty said:

Out of curiosity


I'm curious what the benefit of changing to 9 twist from the SAAMI standard of 8.5 for the cartridge would be? Is it a blank availability issue?

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In my particular case, the blank that showed up at the right price and time on the classifieds happened to be 9 twist but I'd have taken a 10 twist with no remorse based on my expected temperatures, altitudes, etc.

*The following is an opinion based on anecdotes and observations made by folks who shoot way more and far better than myself*

So there can be some issues using a faster twist than necessary. Thin jacketed target bullets can experience rapid and unplanned deconstruction prior to meeting their intended destination; additionally, fouling of and wear to the bore can be accelerated.

Orcon said:

In my particular case, the blank that showed up at the right price and time on the classifieds happened to be 9 twist but I'd have taken a 10 twist with no remorse based on my expected temperatures, altitudes, etc.

*The following is an opinion based on anecdotes and observations made by folks who shoot way more and far better than myself*

So there can be some issues using a faster twist than necessary. Thin jacketed target bullets can experience rapid and unplanned deconstruction prior to meeting their intended destination; additionally, fouling of and wear to the bore can be accelerated.

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I think it's quite unlikely that a SAAMI 8.5 twist would cause problems in a situation where the 9 twist would not, but the availability aspect is certainly a reasonable way to make the decision if you don't really need the extra twist. From everything I've read, "over-twisting" barrels to a reasonable extent (like the twist rates we're talking about) is almost always pretty innocuous, as long as the general bullet type is kept in mind (e.g. no one is buying an 8.5 twist PRC to shoot 110gr V-Max at warp speed, but if they did they might have problems). I haven't heard of any issues with over spinning the very heavy bullets to the point of destruction.

But again, 9 twist should work for almost all of the super heavy bullets out there, so availability and price certainly seem like good reasons to settle on that twist rate.

I actually have an 8 twist .308 on the way, I don't know why the rifle manufacturer settled on that rate, but with the baby .308 case capacity, I'm not expecting any bullet integrity issues.

Gtscotty said:

I actually have an 8 twist .308 on the way, I don't know why the rifle manufacturer settled on that rate, but with the baby .308 case capacity, I'm not expecting any bullet integrity issues.

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Off chance u want to run heavy subs maybe......

Gtscotty said:

Out of curiosity


I'm curious what the benefit of changing to 9 twist from the SAAMI standard of 8.5 for the cartridge would be? Is it a blank availability issue?

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I , for one, did not know the SAAMI twist was 8.5-1 and I would go with that instead of the 9"-1 I suggested from a 20 year old calculation for a heavy bullet .300-378 Weatherby .
But I am sure if you have a 9-1 twist barrel it's all good. Yeah I have not seen any 40 grain bullets coming apart in my 1-8" twist .22-250 improved at 4400 FPS .

@Nature Boy, for this build I'd wait 4-6 months to get exactly what you want. Personally I'd want the faster twist rate unless I knew exactly what bullet I was going to use and assuming that it looks good using Berger's bullet stability calculator or similar. It's unlikely that you'll shoot the barrel out if it's a hunting rifle so you might as well do it right and do it once. Just my way of thinking.

I ran Berger's 245gr Elite Hunter through their stability app (assumed 2,650 fps) and it needs a 1:8.5 twist, particularly as the temperature drops. This is probably an extreme example but there it is.

https://bergerbullets.com/twist-rate-calculator/