POI change with looseing scope

[Lkwebb]

I went to the range this morning hoping to have a better range day tharn the last time out.
Well it turned out to be not a better day but it was good to get out to shoot,
I shot 5- 5 shot groups with 28.5 of n133. After the temp started to raise I loaded up 10 rounds with 28.8 n133 and 5 shots with 28.5.
The shots on the bottom ..... .242 cluster ( aim point was left moth ball dead center) the 5 shot between the moth balls were 28.8 n133 (aim point dead center of bullseye.
Now here is where the scope fell off my rifle. The top target I shot 2 shots lower right of bullseye, then the scope fell off. I put the scope back on and tightened everything down. Now my Aim point was the same dead center of bullseye and the shots went high.
Now I'm not the brightest bulb in the box I'm more of a Bug light.
When a scope starts to come loose what are the directional poi changes you might catch on target before it does.
I feel like I'm spinning my wheels everytime i go to the range. I tend to have a Murphys law in my gun case everytime i go out by myself without my mentor.
I'm beyond getting frustrated but I know it's a learning moment aswell

 

[joshb]

It’s happened to me when I try to move too fast. Just slow down, check everything twice and move on.

 

[Bronsin]

Hang in there man! My first month it felt like the only thing I did was iron out the bugs. The worst one was after driving 45 minutes to the range, setting up my rest, waiting on the local militia to cease fire so I could set up my flags and target, only to find out my rifle wouldn't fire. Had to tear it all down and go home. Turns out my trigger assembly had come loose. Wasted most of a morning with that!

 

[PigButtons]

What I tend to see with a loose scope is that at some point a load that is usually solid starts throwing fliers. Some left. Some high, then low. Unfortunately it is so rare now that I am totally not thinking about it and I still get caught chasing zero before checking the screws. But because of having it bite me frequently in the past it led to buying an inch pound torque wrench to tighten the mounts and rings.

 

[ROBARRC50]

Torque wrench and check a few times durring and after range sessions, untill those little screws take a set. If that had a picatinny cut top rings would not slide. I would be inclined to pin the rings to action top so they cant slide. If there is any cant on the action top depending on what way scope slides will give you a higher or lower impact. Torque wrenches do wonders when fastners are torqued equally way more holding power. Good luck next time out

 

[Lkwebb]

Torque wrench and check a few times durring and after range sessions, untill those little screws take a set. If that had a picatinny cut top rings would not slide. I would be inclined to pin the rings to action top so they cant slide. If there is any cant on the action top depending on what way scope slides will give you a higher or lower impact. Torque wrenches do wonders when fastners are torqued equally way more holding power. Good luck next time out

There is no cant just a straight dovetail mount with Harrels high rings.

 

[ROBARRC50]

There is no cant just a straight dovetail mount with Harrels high rings.

Then i would say scope flex from hanging with only one ring only takes a few thousands to show up at distance. Always try setting rings back up loose to action and slide scope forward and rearward looking at target to see cross hair move vertical or not. thats a half ass way to check for machine stack tolerances inducing cant. But you need to hold rifle really tight for that test to show. Other than that ring torque with a torque wrench should keep rings from sliding if everything is in spec.

 

[AlNyhus]

There is no cant just a straight dovetail mount with Harrels high rings.

You can easily add a recoil 'lug' to address scope ring slippage on the rail/bases. Here's a couple I've done:

Some Loctite 680 shaft and sleeve locking compound should be used on the contact surfaces of the rings and the rail/bases. Also, make sure the contact surfaces aren't super shiny or 'slick'...a bit of 180 grit to rough the surfaces up really helps.

When the scope start slipplin', there's no rhyme or reason as to where the shots go on target..... -Al

 

[Clancy]

I check torque values on my rings about every other cleaning, which is about 100 total rounds. I think it’s a good practice. I had one scope come loose about 12 years ago, and that’s when I started doing it.

I know 10.5 lbs is hell to make with a LV barrel, but I’ve always wondered why more guys didn’t shave a little weight elsewhere in order to use a more robust mounting system in short range.

I like what Al did a lot though. It would be really easy to loc-tite a set screw in front of your rings. Just make sure it doesn’t touch the action.

 

[JEFFPPC]

I like the pin, simple and easy. I use mounts with a pin on my springer air rifles. As far as slipping in the rings, 1 thickness of masking tape in the bottom ring will,eliminate it.

 

[JMayo]

I'm having trouble with Harrell's rings slipping on the dove tail also.
9/64 hex ... I've rounded a couple out. I bought extra screws at the hardware store.
I cleaned the dove tail & the ring groves with alcohol & used flat screwdrivers to spread the rings so not to grove the dove tail nor ring groves. I put 60lbs torque on them. We'll see Sat.
I'm hearing fingernail polish. Under them will help.
Ive been swapping scopes between two rifles so I'm removing it allot.

 

[JEFFPPC]

I'm having trouble with Harrell's rings slipping on the dove tail also.
9/64 hex ... I've rounded a couple out. I bought extra screws at the hardware store.
I cleaned the dove tail & the ring groves with alcohol & used flat screwdrivers to spread the rings so not to grove the dove tail nor ring groves. I put 60lbs torque on them. We'll see Sat.
I'm hearing fingernail polish. Under them will help.
Ive been swapping scopes between two rifles so I'm removing it allot.

Wow, I have those rings on 3 Pandas with Kelbly bases and have never had a problem.

 

[JMayo]

I've taken them off, sliding them off, several times, oh single screw also.
I think I've kinda cut into the aluminum.
It only moved maybe . . That much.
Never moved until i changed them the 1st time.
I'll scuff up where they sit next time.