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one of us |
I saw a post recommending this due to less $$ and longer brass life. It looked like a good idea. Has anyone else tried this? Are there any drawbacks to this technique? | ||
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one of us |
I have tried this and found that you have to really watch your neck thickness as the necks gain thickness when swaged down.If your chamber has a tighter neck you may have to trim the necks before you neck down the brass. | |||
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one of us |
264 Win Mag, 33 Win Mag, 7mm Win Mag 300 Win Mag all are in the same length area that you're talking about. But you should still heed what stubblejumper said about neck thickness. | |||
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<David> |
I use 7mm Rem mag to make 270 Wby. Since there is only .007" differnce between the neck of these two, there is very little change in the neck thickness. The more you reduce the neck size, the greater increase in neck thickness. If I was going to resize to form 257 Wby, I would use 264 Win Mag brass for the above reason. [ 08-18-2002, 21:10: Message edited by: David ] | ||
<JOHAN> |
Gentlemen I did some experiment with necking down 7mm rem mag to 257 wby. I used a three set redding dies and lubed well. It worked great, just watch that neck thickness. It your cases cruches anneal or adjust the die and make the forming in a 2-3 steps Cheers / JOHAN | ||
one of us |
Hello >I tried taking that 7mm straight down to .257 and it crushed the shoulder.< I had same problem with necking .284 Winchester to 6mm. Ended up using a collet in a South Bend lathe to do the first neck reduction, then finished the job with the sizing die. Tom | |||
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<six bits> |
I have necked down 270 WBY brass (Norma)to 257 WBY with no problem. same with Rem 7 mm brass.It will come out about .010 shorter in neck length but works well in my rifle. I do turn the necks,just to true them up.so you are only cutting enough to make them round. de burr the flash holes,and run a Sinclair primer pocket uniformer to clean them up even. They shott just as good if not better then Norma brass. Rem brass is harder,so you can fire it more times before the primers get loose . Works for me ,Thanks to Big Stick. | ||
<Dan in Wa> |
This is the way I do it and works. Just take out the decapping pin assembly and back the die off about 2 turns. Size all of your cases, then turn the die down 1 turn, then screw down till it just barely chambers in your rifle. Really going down just one caliber is a snap. If you screw up a case just take out the decapping rod. Iv'e turned 30/06 cases into .22/250 cases just fooling around and its easy. I know about neck thickness, remember I was just fooling around. 308,7/08,243 all a snap if you get bored some night. Might learn something also. | ||
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