Prep for new brass How much do you do???

Discuss all aspects of Ammunition and Reloading here.
ogre6br
300 Win Mag
Posts: 1781
Joined: Wed Sep 13, 2006 4:35 pm
Favourite Cartridge: 6.5x55 or 6BR
Location: Melbourne Vic

Post by ogre6br »

trevort wrote:
ogre6br wrote:Sorry I'm no help I load Lapua brass
So I just load and shoot as well

LAter
p
show off
nope
smart-
learnt the rule- buy once cry once-

Later
P
User avatar
trevort
Spud Gun
Posts: 12710
Joined: Thu Sep 14, 2006 9:21 pm
Favourite Cartridge: Tater
Location: Melbourne

Post by trevort »

I'd still uniform the pockets. If Norma is supposed to be the next best using it as a guide says the pockets still need done.

I will find out. Worked out a plan to keep the 223, so need some for that and the 2nd 204 has miraculously transformed into a 20 PPC so need to get some of that 220 russian
ogre6br
300 Win Mag
Posts: 1781
Joined: Wed Sep 13, 2006 4:35 pm
Favourite Cartridge: 6.5x55 or 6BR
Location: Melbourne Vic

Post by ogre6br »

I have some factory Sako 6PPC usa brass here if you need to neck something down to make some dummies up to sort out seating depth etc.

THe 6BR com guys did a test on unforming and not uniforming flash holes last year- non uniformed ones were better for their application- but I dont remember the whole article.

What action you building it on??

Check you PM box

LAter
p
Mick
.204 Ruger
Posts: 454
Joined: Fri Mar 09, 2007 8:47 am
Favourite Cartridge: 105mm
Location: Canberra

Post by Mick »

Minivinne wrote:
Mick wrote:For fire forming I weigh and batch, measure and trim, uniform the primer pockets, uniform and deburr the flash holes, neck turn so they will just fit in the chamber (about .002" less than chamber size), then chamfer and bevel the case mouths. Then load them up and fire form.

Once they are formed they get measured and trimmed and the neck turned again to account for any brass that has flowed forward during fireforming, the shoulder bumped, and the primer pocket and flash hole is revisited. Then they are again weighed and batched.

Call me pedantic, but I figure it is best to take out any variables but yourself where possible. If you are confident in your equipment and ammo, it's just the nut behind the bolt that has to do its job properly.
could you explain what the following mean and how it affects the shot

batch
fireforming
the shoulder bumped
neck turn

Cheers
Jase
By batch, I mean batch the cases by weight. Usually to within .5 of a grain at most.

Fireforming is basically firing a standard factory case, and the pressure inside the chamber shapes the case to fit your chamber perfectly. In my case, it's for wildcat cartridges that you cant buy factory cases for.

Bumping the shoulder is using a neck die to push the case shoulder back about .001" so that it chambers easily after being fireformed.

Neck turning shaves brass off the case neck, both to make it a consistent thickness so you get even neck tension, and so you can fit it in tight, competition type chambers.
ogre6br wrote:Sorry I'm no help I load Lapua brass
So I just load and shoot as well

LAter
p
I do too, but I got a variation of 3 grains in case weight over my last 200 cases. Horrible, I know. hahah.
User avatar
trevort
Spud Gun
Posts: 12710
Joined: Thu Sep 14, 2006 9:21 pm
Favourite Cartridge: Tater
Location: Melbourne

Post by trevort »

ogre6br wrote:
What action you building it on??



LAter
p
to be honest, i dont know, whatever target grade one Shane tells me to get!
Blackpete

Post by Blackpete »

Hi guys,
I think it depends on what you loading for, if your target shooting even Lapua brass needs the same prep work, however, if your only hunting you could cut down on the prep work. Horses for courses.

Pete.
Col. Pogy

Post by Col. Pogy »

I use all the match prep steps discussed above because as a field shooter I need every fraction of accuracy I can put into reloads. It is simply harder for me to shoot as well in the field for lots of reasons as is possible on a range. The effort usually lasts several firings or more and is but a small investment of labor in an enjoyable pursuit. pogy
Post Reply