POI Change Using Scope??

[SpiralGroove]

Hello Veteran Scope users:
This is likely a basic question, but the answer is alluding me so far

I've sighted in my gun at 35 ft. (longest crawl space distance under house) and am pretty consistently hitting/nicking a 1/4 " red dot.  However, after being "dead on" one day, the first shots the next day will consistently be a little off, say 1/4" high or 1/4" left?   I'll take 5 shots almost right on top of each, but 1/4" high or left usually?
 
I find myself adjusting the scope a few clicks here or there and then the gun is dead on until maybe the next time.
The scope I'm using is an inexpensive Hawke HK 3006 ($75), and I have a couple inexpensive Leaper's scopes ($60) & ($90).  All scopes suffer from the same phenomena.  
All scopes have an adjustable parallax on the aperture, and I'm using a pretty solid 1 piece Leapers mount. The range I have setup is very bright and all targets are very easy to see (sharp/clear). 

Through the process of elimination, I've determined the problem is me (the shooter)!

So what am I doing wrong with my bench rest hold??  I think I'm just approaching the scope / holding the gun a slightly differently each day which take small adjustments.  Also, the gun is a Hatsan 95 in .177 cal and I'm using the same pellets.  I've always had this issue with my scoped rifles as a kid, but didn't worry about it.

I'm looking forward to shooting outside at 30 to 50 yards and know this issue will only be magnified.
I think this must be doing something pretty fundamentally wrong!!

Questions:
What is my problem?
How do I fix it??

Thanks,
Kirk 
 

[SpiralGroove]

 Since I've had no replies so far.........here is what I've done to solve the POI issue:

- Leveled my shooting bench
- Leveled my trap
- Notice as I adjust my scope "up" (2 clicks) I need to change my "right" (1 or 2 clicks) to keep the same horizontal?

POI now more consistently hitting my aim point. 

When I received my scope I centered it by counting clicks/2 method.  Initial POI was off by 2 " so I didn't worry about a more accurate approach.  Next, I will try the "V cut box method with 1/2 scope rotations at 30 yards" to center up/down & right/left.

I would appreciate anyone chiming in with there two cents on my scope neurosis!
I often feel like I'm talking to myself on the GTA Forum  

Kirk

[ivanpros]

I would suggest:

• Artillery hold
  
• Your eye is the same distance and far back enough that you are not straining to move your head forward. When this happens you tend to start to pull back and can change your vertical POI.
  
• Trigger squeeze (this tends to be the culprit for me). This can throw your POI off; up to and inch if not consistent.
  

[Roadworthy]

Hi, Kirk - I don't know what gives because I didn't see your first post until this morning.  Be sure your reticule is in focus to start with.  Sight on a plain surface (like a wall) and turn the ring closest to your eye until the reticule is in the sharpest focus.

That done, be sure the objective lens is focused for the distance you're shooting.  This is to eliminate parallax errors.  Ten yards is about the minimum for your particular scope.  With the crosshairs on target, move your head side to side and up and down.  If the crosshairs move relative to the target you have a parallax problem.  That is enough to cause minor shifting in the point of impact.

When you go outside to a longer range your shooting may actually improve or become more consistent.

[Dockey 454]

Here is some good reading if you haven't seen it yet.  www.fekete-moro.hu/bfta-setup-manual/index
   Tom

[SpiralGroove]

Guys, thanks your help!
The BFTA scope setup manual gives excellent information.
Kirk
 

[GLWZAPPER]

I would suggest using a sandbag for a rest that seems to be my most steady and most consistent for my pellet rifles!!