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Thread: 358 norma mag

  1. #21
    Boolit Master
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    I am a bargain hound.

    A local shop was going out of business, the owner moved to Montana. He had something like 10-13 boxes of new unprimed Norma brass for the .358 Norma for sale that a customer had ordered in and then chickened out and returned the rifle in the meantime.

    I bought the brass for conversions.

    I never did that.

    I started instead studying the info on the big Norma and just sat on that brass.

    I have not done anything but my plan is to have an ER Shaw made up for my Savage bolt guns and have at it.

    One thing has stymied me ...... I also have a fondness for the same in a .416 Taylor .......

    AND I can't decide which to do first!

    The other fact is that I have been so busy acquiring Savage made (mostly) and a few lower tier custom barrels for the Savage action that the available funds have been going that way instead of towards a pair of Shaws.

    ......... Well, that's my story anyway!

    Three 44s

  2. #22
    Quote Originally Posted by assasinator View Post
    there are a bazillion powders for reduced loads that shoot ANY .358 boolit just fine. I have shot everything I wanted to in my 350 Remington magnum. at low velocities also.
    I have a 35-338 WM that I want to shoot cast in. Not looking for jacketed velocities. Could I safely start at the lower end of the other 35's data to work up loads?
    Lyman's 14th cast bullet manual (if I recall correctly) shows two loads for cast in the 358NM, both use 14 or 15 gr Unique.
    Don't want no one to git hurt, but if you're gonna have a wreck, I wanna watch.

  3. #23
    Boolit Master Texas by God's Avatar
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    Mine was a 1917 Erfurt 98 Mauser that was originally rebarreled to 35 improved Whelan. I had it converted to 358 Norma Magnum. two of my brothers and I traded it back and forth over the years until it finally slipped Away. With reduced loads and Pistol bullets it worked great on turkeys, with 250 grain Speer soft point it worked great on Elk. I only had 20 Factory Norma cartridges and I held on to those for someday. I was given two boxes of Speer dwm 7mm Remington Magnum shells and not being scared I fired those in the 358 to make brass which to my surprise worked perfectly. I honestly cannot think of a better belted Magnum cartridge than the 358 Norma Magnum.

    Sent from my SAMSUNG-SM-G930A using Tapatalk

  4. #24
    Boolit Master
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    I am still sitting on most of my Norma brass as in the prior post.

    A friend had a barreled Mod 70 pre 64 rebarreled in 7mm Rem Mag that I bought from him right after my earlier post but the friend got some of my brass in the deal.

    His contention was that a controlled feed was the best choice for a cartridge like the 358 Norma.

    While the .358 Win is more optimum for cast than a Whelen, The later certainly works. This I am sure of because I have a 338-06 and they are happy with cast.

    The Lyman cast book listed the 338 Win Mag as a very stable cast platform. Why would a 358 Norma not be fairly do able? There is a difference between an optimum cast platform and a do able rifle made more versatile such as a 358Norma.

    My friend kept his Norma and sold me his other pre 64 Win 70 instead because he likes it not only for it’s effect on game but also since it is so versatile .... he loves to shoot word pistol bullets out of it as well. I have to talk to him about cast boolits but he thinks they are some sort of evil. Oh Well!

    By the way, last fall he tagged a major black bear with it. In previous years he clipped bears with it and was not happy with the bullet performance. This latest bear hunt went differently. He shot this one with a tipped Barnes bullet, not the heaviest of theirs either and it went down in a pile. He is on cloud nine over that combo now.

    Best regards

    Three44s
    Last edited by Three44s; 02-07-2018 at 06:19 AM.

  5. #25
    Three44s,
    I have Lyman's cast 4th edition; they also list some cast loads in their 48th and 49th editions of their reloading manuals. Would I be safe starting with low-end loads for the 338 - same weight bullet, and work up slow, using the standard cautions? I know it can be playing with explosions to start extrapolating load data from one cartridge to another.
    Thanks in advance
    Don't want no one to git hurt, but if you're gonna have a wreck, I wanna watch.

  6. #26
    Boolit Master
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    I think it is one of the best there is
    I have wanted a Norma for a long time
    why slow it down and handicap it to shoot cast
    like others have said there are better cast shooters out there
    Hit em'hard
    hit em'often

  7. #27
    Boolit Master
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    calm seas,

    The 338 Win Mag and the 358 Norma have very similar case capacities and shapes. The Norma cartridge has a larger bore size. Everything else being equal, the Norma should operate at a lower pressure than the Winchester cartridge with same powder at a given charge and similar bullet.

    White Eagle makes a good point that the Norma is not an “ideal” cast boolit cartridge. I don’t think that is the point. Lots of cartridges are not “ideal” for cast but still they serve yeomen’s duty with cast.

    A great example is the .243 Win.

    I personally have not tried my rifles in that cartridge with cast but it is well thought of by a number of members in that use. One would have a difficult time convincing many shooters that turning a 243 into a cast shooter is an “efficient shooter”. That is if only velocity is the prime criterion.

    Another criterion an owner of a significant caliber such as the 358 Norma may well be concerned could be flexibility.

    Three44s

  8. #28
    Another criterion an owner of a significant caliber such as the 358 Norma may well be concerned could be flexibility.

    And there, three44s, you stepped right in it. I have the 35-338 in hand. I would like something that can drop a Sitka Blacktail here in Alaska without dismembering it, yet be able to put a few in the magazine in case a brownie wishes to challenge my claim on the deer, or use me as a snack.
    I use 8 gr of Unique under a 230 gr cast in my 454 pistols for plinking...a 360 gr cast WFNGC over 24 gr of H110 for 'serious' bear or moose medicine.
    Flexibility is the beauty of handloading.
    Thanks for confirming my suspicion that the 35-338 SHOULD have lower pressure than the 338WM using identical powder charges and bullets.
    Don't want no one to git hurt, but if you're gonna have a wreck, I wanna watch.

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check