Author Topic: .308 problems (Read 880 times)

lostsniper308 · « **on:** March 18, 2006, 11:33:38 AM »

I went to da range and spent 2 hours and 25rnds trying to get my .308 survivor (ultra barrel and handi syn. forearm). No matter what setting the screws were at i couldn't get it to hold a good group, either they were too big a group or scattered. once in a while i'd get a nearly touching 2 shot group but then the 3rd would fly off an 1 or more. So i went out and bought a SVL De-resonator and i'll try that next, and got kevlar reinforced metal epoxy to try and tighten up the already good lock-up i think i have(any metal epoxy based ideas plz share). at first too the scope rings wern't tight enough and the scope slipped back so far the hammer caught it a few times i bet.

just one more Q should the forearm be tight against the gun or loose, so the barrel drops with no effort on my part?

for a gear rundown i have a Ultra .308 Hunter with Survivor buttstock(which was loose so maybe that's to blame as well) and handi forearm, Tasco 6-24x42 Mil-dot(new) on Weaver quad-lock rings, rested under the hinge on sandbags, Winchester 150gr PP and just 5rnds of the 20 150gr Federal Fusions.

FYI i've about had it with this rifle.

mitchell · « **Reply #1 on:** March 18, 2006, 11:46:15 AM »

did the rilfe shoot good groups before the new scope???

make sure those rings are tight next time you go out.

lostsniper308 · « **Reply #2 on:** March 18, 2006, 12:10:29 PM »

when i first got the rifle it shot great with a Nikon but everythings just goin' down hill. i just got the scope too so i find it hard to belive its the cause yet.

Mac11700 · « **Reply #3 on:** March 18, 2006, 12:19:33 PM »

Lostsniper.....Let me see if I have this correct....The stock is loose..the rings are loose..maybe the base too?...All the while you can't get good groups...And you've just about had it with the rifle...Does that about sum it up???...Ummmm...Perhaps you didn't know.....but..these things have to be TIGHT..BEFORE you shoot...and you need to check them..after a few rounds...to make sure they STAY TIGHT....

Before shooting it anymore.....and before you do anything with shims and steel epoxy..completely clean the barrel.....and degrease everything for the scope rings..check and see if your base set screws are tight..if they aren't..you need to remove them..clean out the screw hole..and re-loc-tite the base screws down........use a drop of blue loc-tite on the set screws for the scope rings as well..and on the stock bolt..snug the forearm down and try it again..otherwise your wasting your time..and getting aggravated for nothing..

Mac

quickdtoo · « **Reply #4 on:** March 18, 2006, 12:20:13 PM »

Go back to the basics, the synthetic forend is much harder to "tune" than the wood forend. As it wears at the frame pivot point, it's going to change how it fits and thus change how the rifle shoots. If the survivor forend was tight, you have part of your answer. Maybe it's time for a forend change?? Epoxy?? Where?? If it locks up tight and there's no gap at the breech, epoxy isn't the answer unless you use it on the forend to tighten it up, but a new forend would be more practical, I think....maybe a wood forend and paint it black, the spacer on it allows some tuning for fit.

Mac's right on making sure everything is tight, to include the stock bolt, someone posted about a ruined hunting trip cuz the stock bolt was loose and they had no tools to tighten it. I'd loctite it, too!!

Tim

lostsniper308 · « **Reply #5 on:** March 18, 2006, 12:30:03 PM »

Quote from: Mac11700

Lostsniper.....Let me see if I have this correct....The stock is loose..the rings are loose..maybe the base too?...All the while you can't get good groups...And you've just about had it with the rifle...Does that about sum it up???...Ummmm...Perhaps you didn't know.....but..these things have to be TIGHT..BEFORE you shoot...and you need to check them..after a few rounds...to make sure they STAY TIGHT....

Before shooting it anymore.....and before you do anything with shims and steel epoxy..completely clean the barrel.....and degrease everything for the scope rings..check and see if your base set screws are tight..if they aren't..you need to remove them..clean out the screw hole..and re-loc-tite the base screws down........use a drop of blue loc-tite on the set screws for the scope rings as well..and on the stock bolt..snug the forearm down and try it again..otherwise your wasting your time..and getting aggravated for nothing..

Mac

i thought they were tight, the stock i found out while shooting and the base i fine i know that and the rings felt fine but just not enough around the scope. I've rechecked and reset these things and i'll see what happens next time.

Ditchdigger · « **Reply #6 on:** March 18, 2006, 01:16:16 PM »

My 308 was shooting 1 1/4" at 100 for quietawhile and then done the same thing.I put another scope ( 3200 Elite) on it and its still going crazy. One of these days I'll get around to trying it again,but for right now I just grab my Colt Coltsman in 308 and use it. Sometimes these things have a mind of there own,and do whatever they want to.

Digger

lostsniper308 · « **Reply #7 on:** March 18, 2006, 02:03:57 PM »

i aint got much of a choice, my only other rifle up to par is a M91-30 from WWII which i don't feel like scaring with a drill scope mount.

Plinkomatic · « **Reply #8 on:** March 18, 2006, 04:13:21 PM »

I put a Choate forend on and it instantly tightened up groups.
I'm using a similar setup (Survivor 308, Tasco Varmint, Warne rings) and I'm averaging 1MOA; sometimes tighter, sometimes with a flyer, but I'm marking that up to the cheap ammo (South African) I'm shooting.
The only other changes I've made- put a heavy rubber washer/re-resonator pushed up the barrel to the forend, a slide-on limbsaver on the butt, and an Uncle Mike's elastic ammo holder on the buttend.
The biggest change in groups came from working my cheekweld. I've got a totally improper weld for now until I build the stock up, but if i focus on my setup and cheekweld, my groups are much better.

lostsniper308 · « **Reply #9 on:** March 18, 2006, 05:39:15 PM »

ah too bad i sold a Advanced Tech Mauser stock, i coulda used the included cheek piece. well i've worked out the flaws from before so all i can do now is go shoot again.

NewYorkRifleMan · « **Reply #10 on:** March 18, 2006, 06:19:40 PM »

Plinkomatic, How did you get your .308 African ammo to eject? I bought my ammo from Cheaper than dirt and it came in that 'battle pack' bag. They fire but they won't eject, I have to use a cleaing rod (good thing I brought it!). Someone told me you can polish the brass really good and or polish the chamber really good too. What did you do? I shot the surplus Austrailan ammo with no problem. I can't find that anymore.

myarmor · « **Reply #11 on:** March 18, 2006, 07:15:30 PM »

Sorry to hear about the troubles bro...though we all go through it at one time or another with our "Labor of Love"

As was mentioned, go back over it, tighten all loose ends, clean and polish that bore..even if you have been shooting it for awhile, and get a elastic shell holder and pack it to raise your check to better inlinement.
If you've been using the O-Ring, try it with out it and tighten that forearm up. My synthetic forarm works good this way. It's hard to get it to float good with them and still have a tight lock up, at least for me it is.

Plinkomatic · « **Reply #12 on:** March 19, 2006, 03:29:28 AM »

I"m extracting, not ejecting.
I polished and, I rub the cases of the SA ammo on my shooters mat which seems to take off whatever substance is on the ammo that makes it stick.
Even still, when it gets real hot, once in a while I have to use a little force to extract.

lostsniper308 · « **Reply #13 on:** March 19, 2006, 07:15:51 AM »

where and how $$ is this SA ammo?

EVOC ONE · « **Reply #14 on:** March 19, 2006, 07:56:47 AM »

Does anyone know anything about the .308 ammo that Dunhams has on sale?

It comes in a military can attached to a belt. They have brass cases and comes from Portugal.

They're selling it for $40 for 200 rounds.

Its labeled as .308, not 7.62.

EVOC ONE

myarmor · « **Reply #15 on:** March 19, 2006, 08:06:25 AM »

Quote from: lostsniper308

where and how $$ is this SA ammo?

The South African 7.62 ammo is about the most abundant 7.62x51 surplus ammo availible at this time. I would rather shoot Lake City or Austrailain though.
http://www.aimsurplus.com/acatalog/copy_of__308.html

http://www.ammunitionstore.com/
go to 308 Win, you'll find it.

Just a couple to get ya started.

EVOC ONE · « **Reply #16 on:** March 20, 2006, 03:05:04 AM »

Thanks, Myarmor.

The Portuguese stuff listed on the Ammunition Store site looks to be what I saw at Dunham's.

EVOC ONE