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257 Rob Imp useing a 444 case
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OK OK Im kind of a rimmed cartridge nut when it comes to single shot break actions so I was thinking the rim could only help accuracy and since these two cases are almost identicle why not? what do you think?
I just received a foxridge 257 rob. Imp 15" Encore barrel and was wondering is it worth the trouble or just reload factory brass?
 
Posts: 68 | Location: Snohomish, Wa | Registered: 01 February 2002Reply With Quote
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I have 50 pieces of new Norma 7x57R brass if you want to go the rimmed route with your project. I was going to rechamber an Encore barrel to 7x57R AI, but a 30-30 AI barrel came my way.
 
Posts: 940 | Location: Oregon | Registered: 23 November 2002Reply With Quote
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I think you'd be spending time forming cases for no true gain. True, the 444 is made from the third draw of 30-06 brass, so has the correct body diameter, but with your loading dies properly adjusted, I doubt you could tell the difference on the targets.
 
Posts: 231 | Location: Republic of Texas | Registered: 19 June 2003Reply With Quote
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I really dont mind forming brass as I have to for just about every thing I shoot but you may be right about the improvment. How should I set up my dies for this cartridge?
 
Posts: 68 | Location: Snohomish, Wa | Registered: 01 February 2002Reply With Quote
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Johnly -- if Patncor 2000 doesn't want your 7x57R brass, drop me a PM on how much you want for it. I have a combo gun and brass is a touch difficult to come by. Thanks.
 
Posts: 119 | Location: Ketchikan, AK USA | Registered: 20 January 2003Reply With Quote
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I make my 309JDJ cases from 444 Marlin and size them in a 308 win die, then fireform. It seems to go pretty good, but if I don't anneal the necks after forming, then the necks split just sitting in the box.
 
Posts: 2924 | Location: Arkansas | Registered: 23 December 2002Reply With Quote
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Lar45,

The same thlng happens when .444 Marlin is necked to .358
JDJ.I believe the factories omit the final anneal on straight cases.

WC
 
Posts: 407 | Location: middle Tennessee | Registered: 24 December 2002Reply With Quote
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johnly, Im going to pass on the 7x57 but, thanks for the offer. Sounds like muledeer would like to relieve you of it though. Hey lar45 yeh I had a 309jdj as well and I would anneal it then run it up my 308win die then fireform it. I think I got creases in 4-5 from forming too fast but out of a hundred thats not bad. The 444 and 307/356 are my fovorite cases to use for contender based wildcats and I think over all a rim works very well in break action single shots but, I am going to order the 257 brass and give it a go when I start working up loads this time.
 
Posts: 68 | Location: Snohomish, Wa | Registered: 01 February 2002Reply With Quote
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