Scope problems with .17hmr

G

Ga Warlock

Inactive
Hey guy's. I need a little advice please. First, I don't consider myself a pro at anything when it comes to guns. I own several caliber's from 30-06, .308 .270.and .243. along with a few .22's. I have installed scopes on all and never had a problem with anything except my savage model 11 and it turned out to be bad mounts.
Anyway, I purchased a marlin 917VX .17HMR recently. I adjusted the trigger pull down and installed a Simmons 4x12x40 8 point scope. I get very good groups out of this using a sled just shooting at the target. Yet, when I try to zero it to the bullseye it goes crazy. If I am 3" off vertical and adjust to the bullet hole the next shot may be 3 or 4" off left or right horizonal. when I correct this the vertical MOVES again. The scope is mounted to the groved receiver. I have redfield mounts on the scope to receiver and everything is nice and tight with nothing canted.

Anyway, sorry for the long post. It is my belief I purchased a crap scope. if anyone has experienced this or can help me with a little advice it would be very much appreciated. Thank's
 
not a expert but sounds like the simmons scope is a dud? do you have a spare? if so try that you will know right away.
 
Will do Godale. I do not have a spare but I will remove one from a proven rifle. Again, No expert here and I have seen a couple of scopes that wouldn't hold zero, I just never seen a scope do this. It holds zero, but seem to tracks diagonally.
 
"I just never seen a scope do this. It holds zero, but seem to tracks diagonally." This can happen with some scopes if one or both of the adjustments are close to their max range. Cheap scopes will often be worse than higher quality scopes. Even some higher end scopes have tracking issues while still new.
 
Had a savage 22 with the same scope problem. could not adjust. Replaced the scope with another and no more problems.:)
 
"You mean they eventually "break in"? If so, does running the adjustment from stop to stop a few times, then centering it help?"

Well, I never did it that way but I suppose you could. Like anything else that moves, the internal of a scope may have tiny burrs or whatever that causes them to "hang up" and fail to track properly. The high dollar scopes are less prone to this simply due to the extra care during assembly.
I seldom swap scopes between rifle so once the scope is zeroed, it's not touched unless it wanders off. If it tends to wander regularly, it gets moved to a "range only" rifle or sold.
 
my sweet 17 went out on mine after 300 rounds. sending it back to bsa. currently looking at a 4x12x40 bushnell trophy and maybe sell the bsa when it comes back. not really sure right now.
 
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