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As a fan of Ruger rifles, the thing that concerns me is that they appear to be marching down the same trail as Win/USRAC with the spinning out of proprietary and redundant calibers that have little hope of ever becoming truly popular. This hints and smacks of trouble with the bottom line in the gun division as they grasp at straws, trying to create a market among folks who already own many guns.

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: As most people don't think of their normal magnums as "High Pressure" I wonder why many people seem to think the Rugers are.
: The Rugers run no higher pressure than any of a number of 'normal' ctgs. including most of the rounds based on the .473" (standard) and magnum .532" rim size. The Weatherby's also run pressures well over 60,000 PSI, and up to 65,000 PSI in some. About the only 'modern' rounds loaded to lower pressures these days, are the two old H&H numbers and lever action rounds and, of course, the .30/06.
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**I think that it exactly what some of the negative press was relating too. They were comparing going to Africa and hunting dangerous game--using the 375 H&H vs the new Ruger .375..all things being equal--the articles I have read feel the old standby H&H is the more prudent way to go..lower pressures = less chance for problems..

This is the same issue with the .416 Rigby vs .416 Remington... I have used the 416 Remington quite a bit with no problems but I am also hunting during what is considered their Winter months and therefore have never experienced a great amount of heat....

I agree--I like new cartridges and also like to mess around with them--my first trip to Alaska I used a wildcat --and have used others since--it keeps life interesting...

Ripp

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ALL MEN DIE, BUT FEW MEN TRULY LIVE..

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Daryl and RIPP, I agree, but I don't see why ambient temperature is an issue for load development for most Americans.

It is no hotter in an "African" summer than it is in the summer of most of the Lower 48 states. Hot, sure, but safe loads developed here in the heat of summer should be safe in the heat of Africa also.

Heat certainly CAN be an issue if loads are developed in the colder months and then shot when it gets hot. I've experienced pressue signs and in one rifle blown primers of a varmint load worked up in January and then shot in July. I've blown a couple of small thermometers I used to have that I hung on the Polaris Ranger that had a max temp of 125 degrees Fahrenheit. In my pine plantation while shooting rats in the summer I've had readings of 140+ degrees on the shooting deck of the UTV right next to the gun. A net is tossed over the gun while waiting for shots as otherwise it gets too hot to touch. Loads developed here in the summer are NOT going to play tricks in the heat of an African summer.

Nevertheless, I see no need for or hope for the Ruger RCM's. Last a while and limp along? Sure, but they'll mostly die lingering deaths if they aren't stillborn in the firstplace.

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Coincidently, Terry Wieland just wrote a less than flattering article on the .375 Ruger ... His concern was with the high pressures needed to achieve the velocity out of the cartridge-

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-which by the way,on his chronograph was about 100 plus fps slower than the claimed velocity..no real suprise there..

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Terry warned those planning on taking this to Africa or Alaska after animals that bite back..to be careful on the loads --as with the high pressures.. could cause a problem, more so in Africa with the heat..

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Coincidently, Terry Wieland just wrote a less than flattering article on the .375 Ruger ... His concern was with the high pressures needed to achieve the velocity out of the cartridge-

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I generally enjoy Terry's writing, but he's wrong there. SAAMI max pressure for the .375 Ruger and .375 H & H Magnum are exactly the same - 62000 PSI. The Ruger is a larger case. Anything the H & H can do, the Ruger can do at lower pressure and in a shorter action.

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-which by the way,on his chronograph was about 100 plus fps slower than the claimed velocity..no real suprise there..

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I'm surprised. The rifles and ammo have been out for a while now, and I've seen so many chronograph reports to the contrary that I think maybe he just got a slow barrel or his chronograph was out of whack. I've seen several reports of velocities of factory ammo from the 23" barrels of the African models that actually beat those Hornady advertises from 24". Hodgdon now has handload data up that matches advertised velocity of factory ammo below max pressure.
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**Actually I am not surprised--as an additional example, I have several .204 Rugers as well-they have the claimed 4225 fps velocity --I have 3 rifles--have shot Hornady ammo in each and neither have come close to the 4225...they are ALL about 100 fps shy of the claimed speed..in addition, the article was on Hornady ammo and the Ruger rifle--which I have also read in other articles that did NOT meet the advertised fps.

There is also an article in "GUNS" magazine by Holt Bodinson--and while he is very kind to the new rifle and caliber (have to sell that advertising)..again it does NOT meet the advertised velocity.

Now one reads that Hornady has a special loading technique which allows them to load the ammo more efficiently than someone rolling his own..I am taking that with a grain of salt as well..

Then you have the argument of the shorter fatter cases which in addition to being in a smaller action were initially suppose to be more accurate. Based on the past 5 years tests reports by Field and Stream earlier this year, in fact, the older cartidges of regular size have actually shown to be more accurate than the short fat ones.

Kenny Jarrett explained this in a seminar I attended last year at SCI..he speculates that the bullet in some hunting rounds were in the cast too deep .. when the powder ignites, the excessive turbulance causes in the shorter the bullet exiting the case to not be as accurate as originally thought.

As to the H&H vs the Ruger .375...personally I will take the H&H every time..especially when traveling...if something goes awry,, what are the chances of finding an extra box of .375 H&H ammo versus .375 Ruger in other places in the world...dramatically different..

While I agree the Ruger can do everything,maybe..again I am not going to believe everything Rugers marketing people put out..have seen it too many times where the numbers to one degree or another are scewed to make it look like the greatest thing since sliced bread...not.

Ripp

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ALL MEN DIE, BUT FEW MEN TRULY LIVE..

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silly me - I'd forgotten (or didn't know) the current pressure levels of that long tapered around, the .375H&H(I'm embarrased). If one form was to give trouble in heat, it's a long heavy tapered round, just as the H&H. Get the pressures up a bit and bolt thrust locks things up. Since that doesn't EVER seem to be a problem with the H&H, why would it be a problem with a ctg. that has a much better 'designed' shape for handling presssure?
; Everypone who shoots Ackley Imp. ctgs. knows the ease of extraction with pressures that lock up actions with more tapered cases. The straighter the sides of the case, the better it handles high pressure.
; Since the .375 Ruger has greater capacity, it's ballistics will be alightly faster at the same pressure, with the same bullet weight. Because the Ruger has a better designed ctg., it will handle any presssure hikes even better than the H&H.
: A ctg's future life depends on the number of different rifle mfg'rs who chamber it. A ctg. needs a variety of rifles for a basis for acceptability by the public. I think the .375 was a great idea for a fctory round, but whether it survives or not, depends on other makers of rifles.

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