bigbulls

Since whendoes a bottle necked cartridge not provide positive headspace? Headspacing off of the shoulder and case head is a far better way of doing it than with rims or belts.

I will give you that tapered cases feed slightly easier than cases with less taper but I haven't ever seen a properly made riflechambered fora full length bottle necked cartridge fail to feed due to the case not having "excessive" taper.

idunno

I'm still waiting on that one. Hoping I can do something with this Savage 110 I have that's chambered in 7mm Rem mag.

eldeguello

Well, I am not sure that Itotally agree that a belt or rim is essential for African use, but am more inclined to concur when takling about doubles. However, in the case of magazine riflesfor dangerous game, the opposite is true. IF your bolt action is of the CRF variety with a big ol' Mauser 98-type claw extractor, it is no more likely to cause trouble using beltless, rimless cases than isa double with rimmed ammo. As a matter of fact, using a rimmed case in a bolt-actionrifle can cause a serious problem, if the rim of the top cartridge in the magazine happens to get BEHIND the rim on the one under it during a fast reload! This can, and has, happened.

PH's in Africa have been using magazine rifles for well over 100 years in addition to the doubles, which many PH's cannot afford. One who usedWinchester Model 70's for years was Finn Aagard, a knowledgeable PH if ever there was one!

I have also been told that when it comes to a double, a belted case is NOT equivalent to a rimmed one as regards reliable extraction. I don't knoiw what to think about this assertion. I have a Heym O/U with a .30/'06 barrel under the 20-ga., and have never had a lick of trouble with extraction of fired '06 brass! If I did, I'd change the ejector and use 7X65R cases to make into 7.62X63R cases.

But, I will admit that I have not used it in Africa. However, it seems to me that the days of true safaris like those of Karamojo Bell and T.R. are 100 years in the past. Nowadays, one hunting in Africa is no more likely to have a weapon put out of commission by harsh environmental conditions than is a person pursuing grizzly bearsin the Brooks Range - in fact, a lot less likely!!

oldelkhunter

Of course it will I was just making an observation on a very dangerous animal killed quite humanely. The fact that the round is available in a normal action length and lighter rifle just makes it that much sweeter and adds some merit to the cartridge. If I owned a 375 don't think I would sell it to buy one but if a first time 375 buyer and hunted in Alaska I would seriously consider it.

I Don't understand how the h&H would be any different then the Ruger feeding into a "Dirty" gun. I would imagine the H&H operates at lower pressures and that might be a plus where temperatures are 100+ over a very stoutly loaded cartridge like the Ruger. What problem is there with the rim on a ruger vs H&H vs 416 Remngton vs 458 win or whatever variant? How is one any better then the other?

nksmfamjp

Some clarification. Belted rounds IMO are for mag fed guns and rimmed cases are for doubles. I think that clears much of this up.

My point is a properly sized and shaped belted or rimmed round has more clearance and taper than a modern headspace on the shoulder round. This extra clearance and taper allow the round to be forced into and fired in a chamber which may have a spec of something in it.

Rounds which headspace on the shoulder must have minimal clearance at the shoulder of the chamber so they are pushed back against the breech face or bolt face. This fit makes them inherently more picky about this dimension. If a spec of crud is on the shoulder area of the chamber it will be very difficult, or impossible to force the bolt closed. A 0 taper case adds to this by forcing anything on the side of the chamber on to this shoullder surface as it is fed.

So, bolt and doubles have their place. Besides, whether hunting browns in AK or cape buffalo in Africa, I don't want to be stomped or eaten because a spec of poo was in my chamber. I want to force and fire.

Scott Gags

I think what nks was saying is that belted cases are not dependant on the cases dimension from the base to the shoulder to ensure the round is held tight against the firing pin.
I really feel there are way to many new magnums being released recently. I wish that Ruger had released a 7mm,308, 338, 375 series of rounds before the recent barage of new rounds. Its a round thatreally makes sense and would be a great option for building a high performance rifle off the standard magnum bolt face that is so common. In 308 it would exceed the ballistics of the 300WBY.