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 Post subject: QB78D at 40 yards
PostPosted: Wed Jul 16, 2014 7:38 pm 
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Joined: Wed Jun 25, 2014 1:54 pm
Posts: 87
Location: Edmonton, AB
So.. my QB78D did well at 10M so I took it outside and tried 40 yards and it did well.. but it was wind so it was hard to really tell.
Today I took it out to a 40 yard indoor PB range and thats when things got hairy.

I noticed when I put the rifle down and then checked my target my POI would change when I shot again. It was all over the place! After some fiddling I found that if I pressed very lightly on the barrel that my POI would change in the direction of the pressure (very light pressure.)

Looking at the band as it sits I dont think it will tighten up much more than it is at the moment.

Was wondering if getting a brass band from Scopesandammo would solve this issue? Maybe even two bands and modifying the stock to fit an extra? I want to get the accuracy I know this rifle is capable of!!!


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 Post subject: Re: QB78D at 40 yards
PostPosted: Thu Jul 17, 2014 9:45 am 
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Joined: Thu Feb 02, 2006 11:35 pm
Posts: 3099
Location: Alberta Canada
VE6WTF wrote:
So.. my QB78D did well at 10M so I took it outside and tried 40 yards and it did well.. but it was wind so it was hard to really tell.
Today I took it out to a 40 yard indoor PB range and thats when things got hairy.

I noticed when I put the rifle down and then checked my target my POI would change when I shot again. It was all over the place! After some fiddling I found that if I pressed very lightly on the barrel that my POI would change in the direction of the pressure (very light pressure.)

Looking at the band as it sits I dont think it will tighten up much more than it is at the moment.

Was wondering if getting a brass band from Scopesandammo would solve this issue? Maybe even two bands and modifying the stock to fit an extra? I want to get the accuracy I know this rifle is capable of!!!

Before getting carried away, buying another band. Try a piece of masking tape to take up the slack inside the band. :wink:

_________________
May the cry of the pack be with you upon your hunt

Whitewolf


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 Post subject: Re: QB78D at 40 yards
PostPosted: Thu Jul 17, 2014 10:12 am 
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Joined: Tue Jun 03, 2008 5:46 pm
Posts: 2815
Location: Canada
Alternatively....remove the band and add a grub screw.

Al


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 Post subject:
PostPosted: Thu Jul 17, 2014 10:59 am 
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Joined: Wed Jun 25, 2014 1:54 pm
Posts: 87
Location: Edmonton, AB
In addition to the one already there?
What size do you think would be appropriate?


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 Post subject: Re: QB78D at 40 yards
PostPosted: Thu Jul 17, 2014 1:02 pm 
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Joined: Tue Jun 03, 2008 5:46 pm
Posts: 2815
Location: Canada
In addition to the one on the receiver....8-32 or 10-32. A Google search should turn up a picture or two and more info if needed.


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 Post subject: Re: QB78D at 40 yards
PostPosted: Thu Jul 24, 2014 12:46 pm 
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Joined: Wed Jun 25, 2014 1:54 pm
Posts: 87
Location: Edmonton, AB
So you guys think it would be alright if I removed the band and added an extra grub screw?
There are three spaces in between the O-Rings, Would there be any benifit to putting in three similar sized grub screws and just letting the barrel do as it pleases?

Has anyone ever put grub screws on the sides of the barrel?


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 Post subject: Re: QB78D at 40 yards
PostPosted: Thu Jul 24, 2014 1:02 pm 
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Joined: Tue Jun 03, 2008 5:46 pm
Posts: 2815
Location: Canada
Don't see any benefit to three on top...space between two of the orings is the transfer port ...adding a grub screw there would create a leak. Believe that if you search you'll find someone has added grubs further back on the sides to further and stabilization .
I run a heavily modded qb79 with two on top and no band but am careful with it...not a field gun per se. You can also file a small flat on the bottom of the band and epoxy bed it to the stock...don't forget some sort of release agent. :wink:

Al


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 Post subject:
PostPosted: Thu Jul 24, 2014 7:47 pm 
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Joined: Wed Jun 25, 2014 1:54 pm
Posts: 87
Location: Edmonton, AB
The plan for now is to just target shoot with it. Might get something else and use it for pesting and been thinking about grouse maybe.
We will see. I really love the gun and after stripping it down and polishing everything (really well) it is sooooo smooth feels like a different rifle


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