bore vs scope impact problem

[gr8lakes]

Hey guys


Can you give me some reasons why
my Savage 10 .308 is shooting about 3 feet low and 2 feet left.

Here's what I have


1st time out I took a look down the barrel at a 6" black circle
made sure to center the circle to the bore and the sides
dialed the scope to match the barrel centered to the 6" circle
shot a bunch of rounds and was consistently 3 feet left and low,
dialed the scope to match the impact point, only to find out I had very little
adjustment left.

I brought the rifle back, took the scope and rail off, looked for bent,
or misaligned parts and found nothing, put everything back on and mounted
a laser bore sight on it, matched the scope to the red dot at 100 yards
went back out, same thing 3 feet low 2 feet left,

The impact point is way off, I mean way off!
when the scope and bullet impact point match
I can look through the bore at the circle at 100y
and then look through the scope
the crosshairs are off the darn 3 foot tall paper target

I get half inch groups,
but I want to shoot 600 to 1000 yds and I am running out of scope travel.

bad crown ?
bad barrel ?
bad shooter :-( ?

[Jamie]

Here are possibilities....

1) Threads on barrel not perpendicular to barrel
2) Barrel bent ( seeing this one more and more)
3) Bore is snaking through the barrel blank. Basically, the drill bit wanders as it is creating the bore. If it is pointed slightly off at the crown then that is where the bullets will go. I have an aftermarket barrel with this issue but it is not off enough to cause issues with my adjustment range.

I am sure there could be other reasons but the are the ones I have seen the most over the last 2-3 years.

[ronswanson]

4) scope mounting holes not in alignment with bore.

Cheapest solution might be an adjustable base/rings