308 rifle brass problems? [Archive] - Glock Talk

PDA

View Full Version : 308 rifle brass problems?


n2extrm
07-31-2010, 15:57
I have a lot of 100 Hornady cases I bought to try. I have loaded them and fired them 5 times as of today and they just won't shoot well. I have tried everything I can think of and no luck. Shot about 80 rounds today and had OK groups not great. Took out some factory Blackhills 175's shot a decent group. Tried some Blackhills brass I reloaded around a year ago, same lot of powder primers and bullets. One of the loads I shot in the Hornady brass, 1 hole in the paper and I was tired and NOT doing my part. I get better velocity and much better SD and groups with LC and BH.

Anybody else have bad luck with Hornady brass?

I think I may just order 100 Lapua and get it over with. My LC and BH has been great but it will not last forever.

Agg22
07-31-2010, 16:02
are they the Hornady match or regular? i think the standard non-match are softer. I've had good luck with winchester and even federal brass. Lapua is just so insanely expensive.

n2extrm
07-31-2010, 16:05
Hornady Match.

Lapua is over the top, but they work great in my 6mmbr, I also had good luck with Norma in the br gun.

fredj338
07-31-2010, 17:31
AT 5x reloaded, they may need neck annealing. AS the brass work hardens, it doesn't want to give the same neck tension. Lapua anneals their brass after final forming & it holds up better than most.
Annealing is like voodoo. If you don't want to undertake the task, then toss the brass into the plinking bin or sell it to a M1A shooter for plinking. Good article. http://www.6mmbr.com/annealing.html
http://www.gun-tests.com/performance/jun96cases.html

n2extrm
08-01-2010, 16:51
Fred,

I have read that before. I have always wanted to try the annealing, but again it has to be done right. I was looking at the Hornady kit, looks pretty simple and cheap enough.

I will post some pictures of the groups and I don't think it could be neck tension, they are huge in comparison. I also can't seem to get the velocity up with this brass. I shot some factory BH 175's over the chrono and got 2550 plus or minus. The data for the load I am using puts it at 2600 fps in a 26 in barreled savage at 42 grains. I am at the max 43.6 and getting 2560 average. Should be around 2700 at this charge.

The LC stuff is shooting good at 8 or 9 reloadings? Don't know if that is really relevant though?

n2extrm
08-02-2010, 17:09
A couple of pics of groups.

http://i636.photobucket.com/albums/uu89/n2extrm/100_1253.jpg

http://i636.photobucket.com/albums/uu89/n2extrm/100_1252.jpg

http://i636.photobucket.com/albums/uu89/n2extrm/100_1250.jpg

All 5 shot groups by me at 100 yards.

GioaJack
08-02-2010, 18:19
Very nice groups for a 1000 yards... oh, wait, you said a 100 didn't you. Huh... I hear lawn bowling is an enjoyable sport. :whistling:


Jack

GIockGuy24
08-02-2010, 18:31
The only Hornady 308 cases I've had were exactly the same as Winchester. They were made by Winchester from everything on them except the headstamp. Blackhills as far as I know has always had cases made by Winchester. Hornady may have changed but I'm pretty sure Blackhills is still the same as Winchester cases.

n2extrm
08-02-2010, 18:56
Very nice groups for a 1000 yards... oh, wait, you said a 100 didn't you. Huh... I hear lawn bowling is an enjoyable sport. :whistling:

Jack

Thanks Jack. I know I can allways count on you to help out and cheer me up. I wonder if wallmart still has water pistols on sale?:crying:There are 2 good groups in their and one ok group. Of course none of those were with the Hornady brass. And before you call me a red hater, the Black Hills stuff was in a red box.:whistling:


The only Hornady 308 cases I've had were exactly the same as Winchester. They were made by Winchester from everything on them except the headstamp. Blackhills as far as I know has always had cases made by Winchester. Hornady may have changed but I'm pretty sure Blackhills is still the same as Winchester cases.

Thank you. I think I have some Winchester I never opened I got from a friend. Only 20 rounds but maybe I should look for it.

fredj338
08-02-2010, 20:48
If the only thing that has changed is the # of times you have fired the case, I am betting neck tension. If the bullet releases diff w/ each shot, POI will change a bit. Brass work hardens at diff rates from case to case. It's why your factory new brass is so uniform & the older brass is killing your groups. Try annealing, the Hornady kit looks simple & repeatable. I have done some w/ a torch & cases standing in water, seemed to work fine, but harder to get uniformity that way.

Zombie Steve
08-02-2010, 22:58
I'd say either annealing would help, or maybe you're getting a lot of runout.

Concentricity tool?

n2extrm
08-03-2010, 19:25
Fred,

Thanks I am going to give it a try. Just got to decide if I want to buy the Hornady kit or just do the water pan. I do have around 70 or so LC cases that shoot well, but are up there in loadings and I am starting to split necks. The BH stuff was loaded 3x so that maybe the diffrence. I am guessing you just stand the cases in the pan of water, get em to glow a little pink and flip em over?

n2extrm
08-03-2010, 19:29
Zombie Steve,

I dont have a concentricity tool/gauge. I was looking at them and the new Hornady tool that is supposed to correct runout. It got mixed reveiws, I could see it making matters worse too. I may give it a try if the annealing dosen't help.

freakshow10mm
08-03-2010, 22:46
The only Hornady 308 cases I've had were exactly the same as Winchester. They were made by Winchester from everything on them except the headstamp. Blackhills as far as I know has always had cases made by Winchester. Hornady may have changed but I'm pretty sure Blackhills is still the same as Winchester cases.
Not sure about this. Hornady has always made their own brass.