Home Forums Hunting & Shooting Express Rifles and Big Bores Only 375 Ruger Again?

The top one is a 22 and the bottom one is a 416. but I have used the same stock with the 375 Ruger as well.

jwp,

how interesting. do you have the 300 newton case specs on hand? i think it would interesting to compare the two side by each.

The Ruger cartridge and the Newton are very similar but when I talked with Steve Hornady and asked him how he came up with the idea he said he simply asked his guys to design a standard length case with no belt and the .532 rim diameter of standard magnum.

There is no doubt it "aids" feeding and extraction but a well tuned bolt rifle can be made to work perfectly with straight sided rounds like the 458 Win and Lott so what is your point?

There is no doubt it "aids" feeding and extraction but a well tuned bolt rifle can be made to work perfectly with straight sided rounds like the 458 Win and Lott so what is your point?

.................The Ruger case is similiar to the Newton. But in the developing of the 375 Ruger, I don`t believe that it was Hornady`s original intention to design a case based on the Newton. Instead imo, it just happened to turn out that way and was co-incidental.

And now that I think about it and in looking over my 375 Ruger casings now right in front of me, what other 375 caliber non belted case design could anyone have possibly developed, which would have accomplished Hornady`s intended goal? Which was; a 30-06 lengthed cartridge with increased case capacity over the H&H, for the purpose of achieving the same ballistic performance from a shorter 20" barrel as the longer barreled 375 H&Hs.

Obviously to increase the powder capacity for the 375 Ruger and to keep it at a 30-06 length, the H&H taper had to go away straightening the case walls, and they had to increase the casing diameter.

Things being as they are and either through the Newton case or otherwise, I really don`t care how or what the influence was as to how Hornady came up with the 375 Ruger case design.

The bottom line, is that this round is a wonderful cartridge, shoots as accurately as any 375, and does so with as much ballistic horsepower as the longer barreled 375 H&H rifles......That is what matters.

Are you saying that Hornady re-invented the wheel? New and diferent cartidge are brought out and they all are bsed on an existing case. Sometimes that existing case is almost in oblivion

The main purpose of tapered cases for both military and sporting rifles has always been to aid extraction - not feeding. When you are using spitzer bullets a lightly tapered case has virtually no bearing on how well they feed, but it does make a difference with dirty, corroded or hot loads. The original 300 and 375 H&H rounds were loaded with cordite, which was temperature sensitive and in the tropics could cause pressure spikes. A tapered case helped.

The .375 H&H Magnum case design was conceived to use cordite; a stick type propellant used widely in the United Kingdom. The tapering cartridge body design and the small shallow shoulder are typical aspects of cartridges optimized for the use of this propellant.[7] An advantage of such a case design is that it will feed and extract smoothly thus contributing to the cartridge's reliability in the field.

With its pronounced taper, the .375 feeds smoothly;

Read more: http://www.gunsandammo.com/content/375-hh-magnum?page=2#ixzz1J25ZYj7E

The main purpose of tapered cases for both military and sporting rifles has always been to aid extraction - not feeding. When you are using spitzer bullets a lightly tapered case has virtually no bearing on how well they feed, but it does make a difference with dirty, corroded or hot loads. The original 300 and 375 H&H rounds were loaded with cordite, which was temperature sensitive and in the tropics could cause pressure spikes. A tapered case helped.

There is no doubt it "aids" feeding and extraction but a well tuned bolt rifle can be made to work perfectly with straight sided rounds like the 458 Win and Lott so what is your point?