Ripp
(.577 member)
03/12/07 11:11 PM
Re: Ruger Compact Magnums

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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-




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..




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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