Scope Zero Check Thread

[1000yards]

That is what is known as the Leupold shuffle.
First shot shows no apparent movement until recoil moves the erector, then it shuffles to its final position which often isn’t where it ought to go.
A scope that hasn’t been dialed much is far more likely to do this, the turrets need to get a little bit of use on them to work more accurately.

Usually if you only want to move a click or so it pays to dial 10 up then back down the 8 or 9 required so the final movement is compressing the erector spring, not relieving pressure on it.

I thought I wouldn't have that issue with a Trijicon. But it is brand new, less than 100 rounds, and I've only dialed a couple times.

 

[mxgsfmdpx]

I believe there was a test on here that barrle heat causes about a 1-2 10ths of a MOA in group growth...so from a 1.2moa to a 1.3/4moa.

This depends on barrel make, quality/type of steel, rifling process, barrel to action torque, head spacing, and whether proper stress relieving was done. Rugers, generally speaking, can be more affected by heat than others. But not at the minimal shooting he is doing here.

Clean barrel does change things.

Yeah man. Leave the barrel alone. Running patches through barrels before and after shooting isn’t the way. Unless you are in extreme climate going months between shooting days.

The tape...never heard of using it.

I have a similar issue I have not gone back to proof out.

Same. I’d remove the tape and properly install.

 

[Castle Rock]

I thought I wouldn't have that issue with a Trijicon. But it is brand new, less than 100 rounds, and I've only dialed a couple times.

Crank them back and forward end to end a few times, they will improve or fail completely, either is a good result, there is nothing worse than not having confidence in your gear.

 

[mxgsfmdpx]

@Justin Crossley are you okay with this being a diagnostic thread to help folks out or would you rather them post the zero check results here and then link a separate thread for folks to go to and help diagnose potential issues?

 

[1000yards]

This depends on barrel make, quality/type of steel, rifling process, barrel to action torque, head spacing, and whether proper stress relieving was done. Rugers, generally speaking, can be more affected by heat than others. But not at the minimal shooting he is doing here.

Yeah man. Leave the barrel alone. Running patches through barrels before and after shooting isn’t the way. Unless you are in extreme climate going months between shooting days.

Same. I’d remove the tape and properly install.

I appreciate the advice. I'll try all of that plus spinning the dials around. Leaving the bore dry will be a good experiment: about 1/3 of the property is salt marsh that borders the ocean and a fellas teeth will rust if he talks too much.

 

[Castle Rock]

Leaving the bore dry will be a good experiment: about 1/3 of the property is salt marsh that borders the ocean and a fellas teeth will rust if he talks too much.

You will regret that real quick.

 

[Q_Sertorius]

I appreciate the advice. I'll try all of that plus spinning the dials around. Leaving the bore dry will be a good experiment: about 1/3 of the property is salt marsh that borders the ocean and a fellas teeth will rust if he talks too much.

Living where you do, I would definitely run an oil patch through the bore unless you are shooting the rifle at least once a week.

A lot of the advice I see about “you don’t need to clean your rifles” is only true if you shoot regularly and live in a fairly dry climate. In a wet climate, like the southeastern United States, the humidity can cause pitting in your barrel where it gets on the copper deposits in your barrel.


____________________
“Keep on keepin’ on…”

 

[270quest]

My .22 heavy barrel that I carry around to shoot grouse. Has a Burris FFII 3-9x40. Bottom group is with 36 gr Remington. Top group is 10 shots with 45 grain subsonic. Out to 30-40 yards should shoot the head off of the grouse.

 

[Jordan Smith]

Living where you do, I would definitely run an oil patch through the bore unless you are shooting the rifle at least once a week.

A lot of the advice I see about “you don’t need to clean your rifles” is only true if you shoot regularly and live in a fairly dry climate. In a wet climate, like the southeastern United States, the humidity can cause pitting in your barrel where it gets on the copper deposits in your barrel.


____________________
“Keep on keepin’ on…”

DBC is the way.

 

[Castle Rock]

DBC is the way.

I have tried to get that here but it was basically impossible.
I am pretty doubtful that it will protect against galvanic corrosion in a salt rich humid environment though.