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Post by deit6555 on Jul 8, 2018 18:11:34 GMT -5
If you haven't come across it yet, check out the thread on handloading the 9.3x57 over on gunboards.com. It looks like they've already figured out most of the issues with the cartridge. Something to watch out for is their discussion on excessive headspace with the Husqvarna guns. It seems that a number of them (including mine) have long chambers, and simply opening the cases up to 9.3 will leave you with backed out primers. I even sprang for a box of the Norma 9.3x57 cases, and I've got to neck them up to about .41 before reforming them, to get the shoulder about .013 forward of where it is now. Handloading the 9.3x57
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Post by z1r on Jul 8, 2018 19:39:51 GMT -5
If you haven't come across it yet, check out the thread on handloading the 9.3x57 over on gunboards.com. It looks like they've already figured out most of the issues with the cartridge. Something to watch out for is their discussion on excessive headspace with the Husqvarna guns. It seems that a number of them (including mine) have long chambers, and simply opening the cases up to 9.3 will leave you with backed out primers. I even sprang for a box of the Norma 9.3x57 cases, and I've got to neck them up to about .41 before reforming them, to get the shoulder about .013 forward of where it is now. Handloading the 9.3x57This true more so for the Model 46 the 96 base rifle, than for the 146 the 98 based rifle. When I got my first 46 I determined that the chamber was a bit long. Factory loads did have the primers backing out some. This isn;t uncommon in low pressure rounds but a chamber cast confirmed the chamer was a wee bit long. Easily solved by forming cases from '06 brass. I trimmer the cases down some, then ran them through the 9,3x57 sizer a bit at a time until I got a "slight" crush fit on the case. Stopped there and loaded up ammo. Problem solved. Fireforming factory loads doesn't work so well due to the low pressures the cartridge operates at. I've worked on a couple dozen of these and haven't found it to be an issue on the model 146.
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Post by deit6555 on Jul 9, 2018 19:51:59 GMT -5
That's good to know on the '06 brass. That sounds a lot easier than the pain I've been slowly going through.
That's also interesting on the 146's. I suddenly feel like my collection is incomplete...
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Post by todddoyka on Jul 12, 2018 14:33:23 GMT -5
i fire formed 8x57 prvi to 9.3x57 prvi. all i did was take the 8x57 and i resized(hornady fl die, i only did the neck of the case, i left about 1/8" gap between the die and the shell holder) it to 9.3x57. to fire form the 9.3x57 i put in the primer, put in the charge and i topped it off with a bullet. (i'm going layman here) then i fired it. the charges were 42.0gr, 43.0gr, 43.5gr, 44.0gr and 44.5gr of imr4895/ 285gr prvi rn. left case IS NOT fire formed, right case IS fire formed 5 fire formed cases resized cases i could find no pushed out primers or soot on the cases. the shoulder of cases was pushed back and formed. case measurement(avg. COL) not fire formed - 2.215" COL fire formed - 2.218" COL fire formed and resized - 2.222" COL in fire forming my cases(42.0-44.5gr of imr4895) i did expect the 9.3 to "kick". it was more along the lines of a "push". (kick-now and a push-it will get there, eventually:D). i'd say the 9.3x57 is like your 30-06(7.5lbs) and 180gr bullet. i didn't get the accuracy or the fps, i was just shooting at the middle of target stand. from info i gathered, i could go up the charge(imr4895) about a 1 or 2, but i'll be cautious of it. ummmm i know this isa dumb question but.....what about rel7? i have many pounds(also 2400) of it or would i be best to let cast boolits deal with it? next year the 9.3x57 will be a cast boolit gun. i'm figuring on a 270-280gr fn gc that goes about 1700-1800fps.
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Post by Lee Martin on Jul 12, 2018 19:46:02 GMT -5
Neat old cartridge. I have a Mauser 98 action set aside for a 9.3x62. Hope to build it this winter. -Lee www.singleactions.com"Chasing perfection five shots at a time"
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Post by z1r on Jul 12, 2018 23:01:38 GMT -5
The 9,3x57 is one of my favorites. But I also like the 9,3x62. Here's a Husqvarna 146 I converted to 9,3x62: Here's another old Mauser in 9,3x62: And another I am in the process of completing: Here's an interesting rifle chambered in an obscure cartridge related to the 9,3x57; the 10.75x57:
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Post by z1r on Jul 12, 2018 23:15:36 GMT -5
And a couple more 9,3x57's and 62's. Top a Husqvarna 649 in 9,3x62 below it a Husqvarna M46AN in 9,3x62 then a Husqvarna M46 in 9,3x57 and finally another 146 in 9,3x57 And while not pretty, it sure is effective and accurate, a 9,3x64: Can you tell I like the 9,3's?
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Post by z1r on Jul 13, 2018 11:52:19 GMT -5
Todd, keep us posted on your range results. My first M46 is 9,3x57 has a great rifling but debris in the grooves. Still, with the factory sights, it will shoot moa all day long. Like you, I find it easy to shoot and not at all punishing. A 285 gr bullet at 2050 fps will get it done without beating you up. Nice thing about the cartridge is that you can shoot cast at factory velocities with great success.
I built a 9,3x62 for a customer who supplied me with a quantity of cast 285's that I have since shot up. They worked superbly in the 9,3x57. I have a mold but haven't found the time yet to try casting my own.
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Post by todddoyka on Jul 15, 2018 14:28:00 GMT -5
yep, i'll do that.
when i picked it up from gun dealer, he goes "9.3mm, what kind of gun?" its a 9.3x57. he goes, "man, its goin to knock your block off!!!" i go, we'll see. i like the way the 9.3 recoils. its not a snap of of '06, but it "pushes or rolls". the 9.3x57 doesn't hurt me, even tho its buttplate is a plastic replacement(which i go, ehhhhhhh, i hate it). i never weighed the 9.3 but i think it should be 6 1/2-7lbs?.
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