DocDoc
Well-Known Member
That is about 40 inches left and 16 inches in height. Pretty difficult to get that right for the first shot on game.
7mm sherman max
- Thread starter elkaholic
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Im confused...are you saying he did a good job or are you saying that he shouldn't be shooting in those conditions?
elkaholic
Well-Known Member
Im saying I was teaching him on doping conditions and showing him how difficult it is to properly place a bullet. It was not a situation where I would even shoot at an elk! As I told him, you dont get 4 or 5 shots to practice doping wind on an elk.
This was all about training to do a better job when conditions warrant. Even after doping correctly with one shot, you could be off a foot or more the next shot with the same settings!
He did make a good first shot.
elkaholic
Well-Known Member
I fully agree! And the intent is not to shoot game in those conditions! Its really more about when not to, and learning the set up.
Last edited:
Michael O'Connor
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The standard 7mm Blaser Magnum is 76.251 gr. usable capacity to bottom of neck. I think the 7mm Blaser Imp. gains 4.5 gr. Bad news is it comes in Norma brass only and it's notorious failing primer pockets under heavy pressure. The major benefit of the cartridge is the long neck and the 2.35" case length. It is ideal for standard 3.34" mag. length using the 1.53" Berger 180 Hybrid. It will run 3050-3080 fps without high pressure in the 180. The blown-out 7mm Sherman Max is super efficient and may outperform the Blaser at equal pressure. Again, we have to say; "Great job Rich Sherman."
elkaholic
Well-Known Member
Thank you Michael!
archeratlrg
Well-Known Member
Anyone know if the intermediate length Mausers could be opened up enough to accept these fatter cartridges?
elkaholic
Well-Known Member
I know a ruger can so i dont know why a Mauser couldn't. It would take some mag box work though.
Better question yet, is an old mauser action stout enough to hold up to the 65-70k psi the SS cases run to achieve their velocity? I'm in the process of getting one built as well, not knocking it, just the case dimensions mask pressure very well.
elkaholic
Well-Known Member
I think it depends on which old Mauser? There were a bunch of them built in different places. Some were as strong as they are now.
archeratlrg
Well-Known Member
Thanks.
archeratlrg
Well-Known Member
The 98's, especially ones built between 1920-1944 are extremely strong and we're proof tested in excess of 100k psi.
benchracer
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Strength isn't really at issue when it comes to putting any of the Sherman Short cartridges in a 98 Mauser. If the plan is to use a milsurp action, the real issue is the amount of work required to sporterize it, modify the feed rails, and open the bolt face/extractor. Gunsmiths who really know how to do this work properly are increasingly rare. The metallurgy of the milsurp actions can also be a limiting factor when it comes to modifications and truing operations. Often, by the time you pay for the modifications necessary to accommodate magnum, SAUM, or WSM cartridges in a milsurp action and sporterize it, you will be near (or above) the cost of a more modern design.
If you want to go with a 98 Mauser pattern as your base action, it would be wise to start with a post-WWII Mark X Commercial Mauser. For the Sherman Short Cartridges, it would be a particularly good idea to start with a Mark X chambered for something like 300 Win Mag or 7mm Rem Mag. The Mark X is already built with all of the sporter features, is made with modern steel, has a fully adjustable trigger, and is available with a magnum (.532) bolt face. Feed rails may still need to be tweaked for the fatter case, but necessary modifications should be minimal.
The Ruger 77 Mark II lends itself well to this sort of thing because of its modular nature. The mag box is a sheet metal part that is contoured for specific cartridge classes and contains the feed lips. No tuning is needed. Simply order the correct mag box, the correct follower, and swap them in to your rifle. For the Sherman Short cartridges, simply start with an action that has a magnum bolt face.
IMO, the easiest approach is to begin with an action that was originally chambered for a SAUM or WSM cartidge. If you shop around, some pretty good deals can be had on rifles chambered for the less popular WSM cartidges. If you like controlled feed rifles, the Winchester Model 70 is tough to beat in this regard.
If you want to go with a 98 Mauser pattern as your base action, it would be wise to start with a post-WWII Mark X Commercial Mauser. For the Sherman Short Cartridges, it would be a particularly good idea to start with a Mark X chambered for something like 300 Win Mag or 7mm Rem Mag. The Mark X is already built with all of the sporter features, is made with modern steel, has a fully adjustable trigger, and is available with a magnum (.532) bolt face. Feed rails may still need to be tweaked for the fatter case, but necessary modifications should be minimal.
The Ruger 77 Mark II lends itself well to this sort of thing because of its modular nature. The mag box is a sheet metal part that is contoured for specific cartridge classes and contains the feed lips. No tuning is needed. Simply order the correct mag box, the correct follower, and swap them in to your rifle. For the Sherman Short cartridges, simply start with an action that has a magnum bolt face.
IMO, the easiest approach is to begin with an action that was originally chambered for a SAUM or WSM cartidge. If you shop around, some pretty good deals can be had on rifles chambered for the less popular WSM cartidges. If you like controlled feed rifles, the Winchester Model 70 is tough to beat in this regard.
archeratlrg
Well-Known Member
Thanks, I already have the magnum bolt face and will do the rest of the work myself including chambering if that's the way I choose to go. Should I go faster than a 1-9 Twist?
