Quote History Originally Posted By captain127:
Does it do the same thing without the can?
One of my “precision” 22 rigs is a box stock savage MK2 I use in NRL22 and silhouette matches. Not as drastic, but at 50 yards my first cold bore shot is 1 inch off at ten o clock then settles back down.
As mentioned if gun has shot mixed brand ammo, that can contribute. Also if gun shot brand a then switched to brand b it will also do so.
When doing ammo testing with 22’s the accepted method is to essentially waste 10-20 rounds when switching brands before settling into groups, as the change in lube and bullet characteristics take some shots before the rifle settles down
Cleaning the can may help.
Also if you do a thorough bore clean, it will take some shooting before groups settle again
I agree it is pretty drastic at just 25. Also try it off a bench with no sling tension to eliminate that variable.
Also based on your photos it is not consistent. The one I discussed above is so consistent if I had to shoot a match cold ( which I did yesterday) I can compensate for the known issue pretty easily.
To summarize things I would do:
Try without can and with from a benchrest.
Do so after cleaning can
Clean chamber throughly of barrel but don’t clean the bore
When you can is apart for cleaning look for any baffle strikes or other signs of misalignment
Start with your go to CCI standard, then change to another ammo, waste 20 rounds, then try groups again
( I am sure you know this, but other than CCI don’t even bother with any other domestic brands - go to SK lapua eley rws something like that)
Let us know what you find
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I appreciate the time you have put into this post. I'm hoping to shoot this rifle a bit this afternoon and will document the cold bore/can again.
The can will come off after that until after the Perry Shoot.
A couple answers I can provide:
Ammo is 99% CCI SV. An occasional magazine of minimags if some black birds need attention and that's all that is available when the need arises.
There probably has been a baffle strike at some point. I had it apart a month or so ago and one of the baffles felt like it had a sharp edge or maybe snagged the cleaning wipe. I don't know where that baffle was in the stack and haven't taken it apart again. I will look further into this. If there has been a strike it could have happened on another firearm.
Question: When I start sorting this out, what would the wait time be for a cold bore/can? 5 minutes 1 hour 24 hours?
This is kind of an aggravating situation. Depending what I want to shoot dumping a round in the ground or in the berm won't be an option.
Also, this problem seems to have "developed", I don't remember missing one off shots at birds last year. Maybe I just forgot the ones that flew away. LoL