ShtrRdy
Well-Known Member
Oh, dang, you are right! I got the 308 in my mind from looking at one of the pictures. Sorry 'bout that.
I edited my post to remove the suggestion of using 308.
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Poor accuracy , need help.
- Thread starter Sasman
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I edited my post to remove the suggestion of using 308.
Borescope to look for carbon ring while we are at it?
slick Nick
Active Member
What powder, bullet combination are you using. Both of mine like the SMKHPBT at 142 gr in front of H380 semi mild load however they shoot very well other powders are ok this one just puts them in a nice tight group .50inche or less is common.
However if it was shooting great before tightening I'd say loosen all that you retorted and start again. Sounds like something has tweaked or twisted after you made the adjustment. I would back track. Just my thoughts everybody here has made good suggestions, good luck.
However if it was shooting great before tightening I'd say loosen all that you retorted and start again. Sounds like something has tweaked or twisted after you made the adjustment. I would back track. Just my thoughts everybody here has made good suggestions, good luck.
waveslayer
Well-Known Member
Havebt read through all the posts, but could be something loose, but most likely it was a rifle built on a Friday! Get a new barrel from Bartlein and you will be set!
I'm with Mram10us, get a borescope and know for sure what is in your barrel.
I have seen carbon rings so big you had a hard time closing the bolt, also carbon layers on top of copper fouling and hiding it.
They are cheap now and easy to use.
Edit to add: https://www.amazon.com/Teslong-Bore...Fits-Insertion/dp/B095HLSYJ6/?tag=lrhmag19-20
I have seen carbon rings so big you had a hard time closing the bolt, also carbon layers on top of copper fouling and hiding it.
They are cheap now and easy to use.
Edit to add: https://www.amazon.com/Teslong-Bore...Fits-Insertion/dp/B095HLSYJ6/?tag=lrhmag19-20
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Bob Wright
Well-Known Member
I've seen on this forum that occasionally the mag box and bottom metal may have been installed incorrectly. Additionally your torque on action screws sounds off.
You might try removing bottom metal, remove the mag box metal and leave it out for test.
If your stock has pillars, torque front and rear to magpul specs or go up to 50-65 in lbs. while at your shooting place. See what it does. The magpul stock may have issues binding in the area of the trigger, mag box area, barrel channel, screw holes.
Your groups seem to be jumping left to right. You might want to check velocity over a chronograph "just because". Sometimes you will find a wild shot can be tied to velocity.
Mis-assembled mag boxes happen. There has to be verticle play in the mag box when installed. Non factory stocks can be off dimensionally or there could be a piece of plastic burr in the mag well binding the assembly.
Take it one thing at a time and bring your tools to the range. Patience....
You might try removing bottom metal, remove the mag box metal and leave it out for test.
If your stock has pillars, torque front and rear to magpul specs or go up to 50-65 in lbs. while at your shooting place. See what it does. The magpul stock may have issues binding in the area of the trigger, mag box area, barrel channel, screw holes.
Your groups seem to be jumping left to right. You might want to check velocity over a chronograph "just because". Sometimes you will find a wild shot can be tied to velocity.
Mis-assembled mag boxes happen. There has to be verticle play in the mag box when installed. Non factory stocks can be off dimensionally or there could be a piece of plastic burr in the mag well binding the assembly.
Take it one thing at a time and bring your tools to the range. Patience....
Those teslong changed the game for us. Still have my $40 usb bs from teslong. I like the one you posted better than mine
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I tried to remove that message about Amazon Associate but if I do the entire script goes away. I don't make a dime!
While I was thinking it you already got it! Quick thinker this morning!
While I was thinking it you already got it! Quick thinker this morning!
Check the front scope base screw, ensure it's not jamming on the barrel threads. Had that issue just recently with a R700 30-06. Tried all kinds of loads and bullets and it would not hold a group. Finally took everything off and the front screw was shiny on the bottom. Filed 0.020 off the screw and rifle was shooting pretty tight groups. It is a friends rifle and he bought it from a gunsmith who was the one who mounted the scope on it.
fyaman2
Active Member
I forgot to mention allow you barrel to cool between shots, (i wait 5 minutes) thinner barrels tend to "walk" when heated up especially during load workup and testing, once i develop or find a decent load thats when i test faster shot strings.
Kmccord
Well-Known Member
Let's see a picture of the rifle.
Consider epoxying rail/bases to action. Yes, they can be removed with heat 
one less variable
one less variableSdvldog1371
Well-Known Member
Also, if you are shooting off of bags or a rest of any kind. Make sure that the rifle stock is resting fully on the rest and that none of the barrel is contacting it. I'm sure it isn't the problem, but I've been seeing a lot of tired folks at the range trying to re-check their zero doing this. Most of them don't even realize it.
Based on the fact that you are able to tighten up the groups with different torques on the action screws, I am of the belief that there is something going on there. Most like a magazine bind or it needs to be bedded.
