What if my necks are tight enough to hold a bullet firmly AFTER firing..

jwp475 · #15 12-06-2008, 10:55 PM

300 Win @ 425 yards off a Bi-pod

338 Lapua @ 760 Yards off a bi-pod

And I don't turn necks

Marine sniper · #16 12-07-2008, 03:02 PM

I see your 3 in. group at 760 yards, and raise you a 2.96 in. group at 900 :-) I turn necks.

edge · #17 12-07-2008, 07:03 PM

Marine sniper, you do know that you are using your windage and elevation knobs backward don't you....but I guess that it helps when you are hiding in the bushes and can't rotate your rifle to the vertical

.

edge.

PS pretty fancy shooting!

Marine sniper · #18 12-07-2008, 08:03 PM

Quote:

Originally Posted by edge

Marine sniper, you do know that you are using your windage and elevation knobs backward don't you....but I guess that it helps when you are hiding in the bushes and can't rotate your rifle to the vertical

.

edge.

PS pretty fancy shooting!

How do you know that ? Did I post a picture of my rifle ? You are right though....when I had the Leupold on the 300 I switched the knobs and turned the scope 45* The reason for this if you are a right handed shooter you can make adjustments to the scope without ever taking your right hand off the trigger, or eye off the scope.......just in case you see a turban that needs untied at 1000 yards :-)

Just yesterday I mounted a NF scope on the 300, and put the Leupold on a little Vangaurd 308 I bought. Here is a pic, below it is the 30-378 I have been talking about. I mounted the scopes in the traditional fashion.

I found one of the 300 with the scope the way it was, next to my 308 sniper rifle.

Michael Eichele · #19 12-08-2008, 06:57 PM

In a .332 ND chamber you have to turn necks anyway, you may as well turn a wee bit more for SAFE clearences. Even if your loaded rounds are .329-.330 you still wont be able to push a bullet in a fired case by hand. While it seems like a good idea to just shoot them and reseat a bullet it, getting concistent neck tension isnt always possible. It (IMHO) is much more concistent to neck size them for concistent results. I have toyed around with tight neck chambers and found that with that much neck turned off, and after FL resizing (the neck is smaller than the FL die and doesnt touch the neck) and then neck sizing there wasnt any runout worth sweating over. The downrange groups told the tale as well. She regularly shot 1/4 MOA. This was a 300 RUM with a .333 ND. One other reason I used this method (aside from keeping it safe) was some loads prefered .002 neck tension and others preferd .003 and yet another prefered .004. This allowed me to simply swap bushings in my neck die.