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DesertBull

Who turns necks?

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Oal trim champfer, full length size, turn necks uniform primer pockets, uniform flash hole, DE Burr flash holes, clean, load, fire form.

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I have to turn necks on my 300 Wby brass... not so much on once shot but on multi shot brass it has a big affect on the POI of my Mark 5.

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I find that turning necks, or just touching them up will reduce your Extreme Spread and Standard Deviation numbers. Normally that means less vertical in your groups and distance.

 

I usually sort batches by neck thickness and then just barely trim enough off to make them uniform. I only remove the minimum amount needed. Doing this will help ensure consistant neck tension which is a big deal to me.

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I hit this pretty hard early on in reloading but I have not had the time to build a gun to suit it. I agree good brass negates some of the need and neck tension is very important. The most difference I ever saw was in SD which if I had the right rig would make a big difference at long range.

I think AZkiller stole my checklist.

Mr Zedyker I believe I have mentioned before has a book reloading for competition and if you want to learn about all the little tiny things that can move reloads around this book has it all from different presses to powder lots to neck turning. The biggest difference I ever saw was in primers and their effect on SD. These guys are making jagged holes at 800 yrds.

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