I'm interrested in building a North American big bore to easily fit into a standard mauser 09/22. I would prefer a non belted case. From what I can find this makes it a wildcat, and thats just fine.
Which one of these thumpin wildcats do you gents prefer?
338/06, 35 Whelen, 9.3X62 or with a little more work the 98 will take anything on a 375 HH case. If you don't want a rim, use one of the Dakotas. You have the length available in the 98, so I'd use it instead of going the short fat route.
I'd vote for the 35 Newton for first pick and my own (reamer and HS guages for sale) 416x2 1/2 Rigby as second pick......or the same case using a .338 bullet. I have that one too.
9.3x64 Power of a 375 in a std length cartridge with no belt. Feeds slicker than shit through a goose.286 gr bullets at 2600 fps. If that ain't a thumper I don't know what is!
Soundman, funny, the day after you posted this unbeknownst to me, I started a thread over at 24hrcampfire on the same subject. I'm looking for basically a 375 Dakota (or .358) but with a standard boltface. I hear this will likely case feeding problems, so it seems I'm looking at either shortened RUM cases or the Dakota itself. The Dakota has a very large rim dia - larger than the parent, unlike the RUM, which has the regular magnum boltface, which could be fir without much trouble. I think this allows two in the mag, w/o work, but I wonder what it would take to get a third.
The 9.3x64 necked up to .375 is in the running as well. I have very little load data on the 9.3x64, but I'm thinking it would give around 4500fpme in hot loads. (My energy target.)
Posts: 2000 | Location: Beaverton OR | Registered: 19 December 2002
Could anyone direct me to info on the 416x2.5? Is there a semi-standardized (dies available) 416 based on the 2.5" belted .338 win case? Will the standard 416 rem. work with a standard 30-06 action? Thanks for the help.
Posts: 767 | Location: Seeley Lake Montana | Registered: 17 April 2002
quote:Originally posted by youngun: I'm looking for basically a 375 Dakota (or .358) but with a standard boltface. I hear this will likely case feeding problems, so it seems I'm looking at either shortened RUM cases or the Dakota itself. The Dakota has a very large rim dia - larger than the parent, unlike the RUM, which has the regular magnum boltface, which could be fir without much trouble. I think this allows two in the mag, w/o work, but I wonder what it would take to get a third.
Standard boltface as in .470, or standard magnum bolface as in .532? Rebating a 404-diameter case to .470 doesn't sound like a very good idea. The Dakota rim diameter is not that much more than standard magnum -- .545 vs. .532. Some loosely cut standard magnum boltfaces can handle the Dakota, otherwise opening the boltface just a smidge is not a big deal. You should also be able to shorten and reform RUM brass to fit the Dakota chamber and a standard magnum boltface; but the RUM brass is considerably thinner, so you will increase powder capacity by a few grains (probably about 6) and won't be able to use Dakota loading data. As for how many will fit in the magazine, any magazine that is deep enough for four .470-size cartridges is deep enough for three Dakotas.
All things considered, I think both the 375 Dakota and the same 375 necked down to 358 are very attractive. The 375 is equivalent to an improved 375 H&H or a 375 Weatherby, the 358 to a 358 STA -- although both are, of course, beltless and shorter than these equivalents. The only downside is the price of the brass, and that's not as bad as it used to be or as big an issue as some make it out to be.
I asked about the preformance of the 416x2.5 on the big bore forum, I recieved a reply that it should push the 400 gr. to about 2300fps. To my mind that is a sure enough thumper for North America.
Now all I have to do is finish the 2 incomplete projects that I have going now.
