Browning BLR sprayin factories

WhelanLad

WhelanLad

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Gday what can you fellas tell me about a BLR 7mag putting two shots together an spraying the third?

Winchester super x factory ammo was used initial tests, we Are about to load AR2217 and 162gr SSTs

Any notorious issues to look for first
An any recipes with the 2217adi ( H1000) I believe.


Thanks alot
 
I know two different people who have had inconsistent results with boat tail bullets in their 7mm rem mag. Once they switched to something with a flat base things tightened right up.

Maybe try a different bullet and see if that helps.
 
The BLR, as with most two piece stocks, and along with the earlier BAR’s, has, or rather, could have, an issue with barrel contact on the fore end. Remove the front stock, and look for any rub marks or wear.
Run the Googler for various info on fixes and methods. The easiest, of course, is to relieve the area making contact.
It is early here, and working on the first cup o joe. It’s been a fair while since wrenches have been turned on either rifle, so double check and make sure the info is good… pretty sure it is, but run the Googler to check.

R.
 
I'm wondering if it isnt more issue maybe with friend pressure etc.

Maybe just doesn't like Super x grey box.

Will report back tomorrow
 
WhelanLad said:
I'm wondering if it isnt more issue maybe with friend pressure etc.

Maybe just doesn't like Super x grey box.

Will report back tomorrow
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Fore end pressure could be a definite issue. The two schools of thought are full float, or full bed. If it didn't like the ammo, it wouldn't group at all. That it is grouping the first two, and throwing the third, shows a mechanical problem with the rifle.

R.
 
How far is it spraying the third? And how much time between shots? The two together and the third wandering makes me think that your pencil barrel on it is heating up. I've had a few hunting rifles with skinny barrels over the years that have had this or similar problems. The issue is always kind of hard to troubleshoot because it can simply be vertical stringing from the barrel heating up, or it can be contact with the fore-end when i heats up causing pressure. (This one really sucks, because normally by the time you start looking for it, the barrel has cooled and the contact is no longer there) It could also be something as simple as the ammo. Winchester grey box can have a pretty big difference in velocities, which may be affecting barrel harmonics as well.

The simplest answer is to make sure you don't use more than two shots to take it down! LOL
 
Inconsistent ammo, inconsistent rifle and/or inconsistent shooter. "Spraying the third" does not provide much info.

Iron sights cover a lot of the target, scopes mounted on a rifle that is designed for iron sights allow the shooter head to move a lot. Target size, distance to target, weather conditions, quality of optics, shooting technique, canted scope, scope height above bore...lots of variables.
 
WhelanLad said:
ended up getting close to max charge with h1000 but busted a scope ring screw?!?!?!
Click to expand...

Maximum loads may deliver less accuracy than a lighter load.

Broken screw~scope may have been loose in rings, impact during recoil may have something to do with breakage.
 
yeah i rekon you guys are on money with hot barrel.... i got him to really wait an cool the barrel between shots, as i noticed the tube was gettin hot after each shot!! once we did this groups improved quite a bit.

the forend is also not free floating, so he is going to pull that off and put some effort in free floating it- the combo of those two issues make sense to me.

at 69 gr h1000 we were gettin into 2 inch country..... 2 shots would land within an inch most often and i agree with making the first 2 consistantly close, an a third is spraying an praying anyway, for the kind of hunting we do.

i post a video shortly....... i lent him the Ruger .35 whelen (he does own the 338 RCM i often speak of) an he was succesful this morning!!


i went to twist out the front scope ring an it 'snapped'... someone had welded the twist in ring to the burris base........... WTF. lol.

so he is starting again with it, pulling apart an new rings, new base an forend sanding etc.......

will start at 69gr an do the 70gr again as it looked promosing until noticed that it shot 1ft low with first 70 gr charges lol i wsa like What in the heck just happened man!?!?!?


on a good note,,,, CDS vx2 an my 708 are back on track..... not sure why but was shooting real high an Left at 100meters....... re zero-ed an went an JBM some data after the chrony read 2650 average for my 140gr rounds- boom ding. 300 an 350 no worries :)

bu thats for another day

thanks guys
 
When the barrel gets hot, it expands, and often will make contact with stuff it shouldn't, and seldom repeatable. Hence the recommendation for the float.
Sounds like you are on track now!
R.
 
I’d remount the scope and shoot it slowly. These guns haven’t had an issue with poor accuracy due to fore-end contact. Even though there is a band at the end that wraps around the stock and the barrel. The triggers are heavy, the lock time is slow, the gun short with a narrow front stock, so shooting it accurately isn’t as easy as a bolt gun imo.
 
Buckmastr said:
I’d remount the scope and shoot it slowly. These guns haven’t had an issue with poor accuracy due to fore-end contact. Even though there is a band at the end that wraps around the stock and the barrel. The triggers are heavy, the lock time is slow, the gun short with a narrow front stock, so shooting it accurately isn’t as easy as a bolt gun imo.
Click to expand...

hey i forgot to mention this!!!

so the rifle had 2 bands for the sling! one a full circle, an one a aftermarket half one..... i said to the bro, we need to take one off as the harmonics would be up the ####! THIS ALSO helped tighten group for sure!!!

trigger i believe is heavy ish. an i note he doesnt hold the forend off the bags but seems to be repeatable for him....... i did mention he should hold that front lol.

no band around the stock an barrel though, its a BLR lightning model too.

i said, maybe the barrel is Alloy too LOL :p

all good i think we are on track now!!!
 
Glad it’s working. Yeah the pre 81’s had the stock and barrel banded. Newer ones don’t appear to have that. Never owned a new one.
Browning makes a terrific rifle. Accuracy has never really been a problem with them ime.
 
Accuracy is a problem with a lot of BLR's. I have seen a few that shot like bolt guns but the majority of BLR's I have dealt with didn't shoot well or were all over the place with groups( shifting POI). My friend has 308 BLR81 that he has had three scopes on and two sets of rings and bases. Still doesn't shoot well or consistently. Some guys love them but not my cup of tea.
 
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