Just a perusal of brass prep .

RBHarter

West Central AR
I know this is beaten to death , but a recent 30-30 thread has made me wonder if I'm doing it wrong . It was actually a statement about bullets lining up with the bore where jump is a consideration from case to barrel .

To my mind set , with life experience etc , the closer a case fits in a reasonably square and concentric chamber the better the bullet will line up in the bore .....
So to me as long as a case doesn't hang up or require more than a quarter or so of the cam to locked in a bolt and there's no hang ups in slides or semis there's no problem with neck or even short sizing . I even short size for an AR with a FL at the 4th loading .

Where I have multiple chambers in rifle cartridges I size to the tightest chamber , unless I have something worked out to segregate brass . I even have a gutted FCD I use for 45 Colts as a sizer so the Carbine and pistols will share without over working the brass , besides I hate that Coke bottle effect that always loads crooked .

I know that in the magnum length revolvers I see an improvement with "neck" sizing just enough to hold the bullet tight . As long as they chamber easy why work the brass anymore than needed ?

SD or similar demand lay away ammo of course gets the FL because I might have to feed something I don't have yet or someone else's .

So what's the opinion here ?

Target .
Hunting .
GP .
Desperate use .
FL or neck ?
 

popper

Well-Known Member
I mostly shoot paper for fun and hunt when I get an opportunity. I FL everything. I make BO & neck turn, have lots of used brass for the other stuff. I anneal when I'm not too lazy. I use expanders to set neck tension (and probably should sort by seating force). I FCD rifle, taper crimp pistol but not much crimp for either. Everything but the 30/30 is autoloader. As for SD I plunk test everything for pistol and have started checking neck OD in rifle. Basically plan is everything goes bang when the trigger is pulled and bullet style/load changes for the application. I am comfortable with any for SD.
I do as little as possible to brass. Seems to work.
It was actually a statement about bullets lining up with the bore where jump is a consideration from case to barrel .
I did ask ? more about bullet design to fit. The 'normal' type answer is do a pound cast and send it off, which is not the info I am looking to find.
You (say 308) have 336ish in front of the mouth, then some (maybe) taper to bore (308) and lands (304). Plus trying to get enough nose into the bore to center it. Plus the heat generated by the base pressure. That is a lot of pushing and shoving of lead.
 

RBHarter

West Central AR
I'm fortunate enough to have two 30 cals that are so long throated that jacketed won't touch and stay in the case both . I also have had an SKS with a .3165 groove that would take a .321 in a fired case and freely chamber a .318 nose of a 323-175 2R Lee .

There is always the brass life discussion and sizing .
Unfortunately some guns really abuse the brass and I try not to work the expensive ones any more than is necessary .
Life and death are of course a different matter and that doesn't require brass life or likely 2 moa past 150 ft .
 

JWFilips

Well-Known Member
I shoot fat bullets in my mil surps because of worn throats! It is not unusuall for me too turn necks .008".
Just keep them annealed every 4 firings