I recently purchased a POF P308 16.5 and mounted a Vortex PST 2.5-10X44 because I thought that focal length would be the best for getting out to 500 yards and not putting too much scope on the barrel length. I am a big Nightforce fan but could not afford the NXS 2.5-10 they offer at this time. The rifle shoots under an inch POA when I finally got it to shoot on paper. I used Badger Max Alloy high rings that are 1.125. My problem is that when I sighted the rifle in yesterday I almost maxed out my elevation. Any thoughts?
Rifle Scopes Having trouble with a new Vortex PST and elevation
- Thread starter gmphk
- Start date
Re: Having trouble with a new Vortex PST and elevation
What are you zeroing at? 100 yards or were you just getting on paper at 500?
What are you zeroing at? 100 yards or were you just getting on paper at 500?
Re: Having trouble with a new Vortex PST and elevation
I am assuming it has a zero cant/integral base. If not, that could be the problem, too much to get you down where you need to be at short range. Other than that, rings not seated on base properly?
I am assuming it has a zero cant/integral base. If not, that could be the problem, too much to get you down where you need to be at short range. Other than that, rings not seated on base properly?
Re: Having trouble with a new Vortex PST and elevation
Vortex shows that scope having 86 MOA for both ele and win, your POF P308 is a full rail isn't it? You should not be having any problems. You state you are using high rings...why with a 44 objective?
I'll throw out;
Have you confirmed your turrets are moving your reticle, if you have an optical bore sighter it will be easy for you to check.
When you got your scope did you check if the turret adjustments were centered, you know twist them all the way in one direction, twist them all the way back to the other end counting clicks then half that number of clicks and turn the turret(s) to middle?
I've even corrected rifles that people put a rail with elevation on backwards, you don't have that concern!
Vortex shows that scope having 86 MOA for both ele and win, your POF P308 is a full rail isn't it? You should not be having any problems. You state you are using high rings...why with a 44 objective?
I'll throw out;
Have you confirmed your turrets are moving your reticle, if you have an optical bore sighter it will be easy for you to check.
When you got your scope did you check if the turret adjustments were centered, you know twist them all the way in one direction, twist them all the way back to the other end counting clicks then half that number of clicks and turn the turret(s) to middle?
I've even corrected rifles that people put a rail with elevation on backwards, you don't have that concern!
Re: Having trouble with a new Vortex PST and elevation
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: JelloStorm</div><div class="ubbcode-body">What are you zeroing at? 100 yards or were you just getting on paper at 500? </div></div>
100 yards...
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: JelloStorm</div><div class="ubbcode-body">What are you zeroing at? 100 yards or were you just getting on paper at 500? </div></div>
100 yards...
Re: Having trouble with a new Vortex PST and elevation
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Temp9</div><div class="ubbcode-body">Almost maxed out which way? If you have full up elevation, it works to your advantage. If you have no up elevation, look for a solution. </div></div>
No up...minimal anyway...
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Temp9</div><div class="ubbcode-body">Almost maxed out which way? If you have full up elevation, it works to your advantage. If you have no up elevation, look for a solution. </div></div>
No up...minimal anyway...
Re: Having trouble with a new Vortex PST and elevation
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MSG Jano</div><div class="ubbcode-body">Vortex shows that scope having 86 MOA for both ele and win, your POF P308 is a full rail isn't it? You should not be having any problems. You state you are using high rings...why with a 44 objective?
I'll throw out;
Have you confirmed your turrets are moving your reticle, if you have an optical bore sighter it will be easy for you to check.
When you got your scope did you check if the turret adjustments were centered, you know twist them all the way in one direction, twist them all the way back to the other end counting clicks then half that number of clicks and turn the turret(s) to middle?
I've even corrected rifles that people put a rail with elevation on backwards, you don't have that concern! </div></div>
I used the high Badger Max Alloy mounts because my GAP-10 has a PRS stock and has a slight cheek rise for best eye box/eye relief with the med high rings (1.25). The POF has the UBR which puts the eye relief perfect (in comparison) with the PRS (comparing the 1.25 of the Badger rings GAP put on for the F1 compared to the 44mm Vortex ). The objective is not visually further off of rail than the larger bell of the Nightforce hence my problem.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MSG Jano</div><div class="ubbcode-body">Vortex shows that scope having 86 MOA for both ele and win, your POF P308 is a full rail isn't it? You should not be having any problems. You state you are using high rings...why with a 44 objective?
I'll throw out;
Have you confirmed your turrets are moving your reticle, if you have an optical bore sighter it will be easy for you to check.
When you got your scope did you check if the turret adjustments were centered, you know twist them all the way in one direction, twist them all the way back to the other end counting clicks then half that number of clicks and turn the turret(s) to middle?
I've even corrected rifles that people put a rail with elevation on backwards, you don't have that concern! </div></div>
I used the high Badger Max Alloy mounts because my GAP-10 has a PRS stock and has a slight cheek rise for best eye box/eye relief with the med high rings (1.25). The POF has the UBR which puts the eye relief perfect (in comparison) with the PRS (comparing the 1.25 of the Badger rings GAP put on for the F1 compared to the 44mm Vortex ). The objective is not visually further off of rail than the larger bell of the Nightforce hence my problem.
Re: Having trouble with a new Vortex PST and elevation
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MSG Jano</div><div class="ubbcode-body">Vortex shows that scope having 86 MOA for both ele and win, your POF P308 is a full rail isn't it? You should not be having any problems. You state you are using high rings...why with a 44 objective?
I'll throw out;
Have you confirmed your turrets are moving your reticle, if you have an optical bore sighter it will be easy for you to check.
When you got your scope did you check if the turret adjustments were centered, you know twist them all the way in one direction, twist them all the way back to the other end counting clicks then half that number of clicks and turn the turret(s) to middle?
I've even corrected rifles that people put a rail with elevation on backwards, you don't have that concern! </div></div>
The click adjustment were visually centered with the visible marks on the scope. I did not watch the reticle for movement when sighting in the rifle. The first hits were well below line of sight in the scope (probably 3-4 feet). I made the necessary adjustments to get the hits to line of sight with the scope.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MSG Jano</div><div class="ubbcode-body">Vortex shows that scope having 86 MOA for both ele and win, your POF P308 is a full rail isn't it? You should not be having any problems. You state you are using high rings...why with a 44 objective?
I'll throw out;
Have you confirmed your turrets are moving your reticle, if you have an optical bore sighter it will be easy for you to check.
When you got your scope did you check if the turret adjustments were centered, you know twist them all the way in one direction, twist them all the way back to the other end counting clicks then half that number of clicks and turn the turret(s) to middle?
I've even corrected rifles that people put a rail with elevation on backwards, you don't have that concern! </div></div>
The click adjustment were visually centered with the visible marks on the scope. I did not watch the reticle for movement when sighting in the rifle. The first hits were well below line of sight in the scope (probably 3-4 feet). I made the necessary adjustments to get the hits to line of sight with the scope.
Re: Having trouble with a new Vortex PST and elevation
I have remounted the scope and switched the rings from front to back and back to front. I took great care in making sure that the rings were tightened equally to make sure that was not a problem. I have not reshot the rifle but the mounting heights appear to be the same for both the front and back rings. I will report back this Monday when I re-shoot the rifle. This is what SportOptics suggested. Any other suggestions?
I have remounted the scope and switched the rings from front to back and back to front. I took great care in making sure that the rings were tightened equally to make sure that was not a problem. I have not reshot the rifle but the mounting heights appear to be the same for both the front and back rings. I will report back this Monday when I re-shoot the rifle. This is what SportOptics suggested. Any other suggestions?
Re: Having trouble with a new Vortex PST and elevation
Same thing was happening with my dads pof, we took his 6-24 pst off and Im shooting a 4-16 pst in an american defense qd mount so we threw that one on and didn't quite max out the elevation but pretty close. I'll have to ask him if he got it resolved yet.
Same thing was happening with my dads pof, we took his 6-24 pst off and Im shooting a 4-16 pst in an american defense qd mount so we threw that one on and didn't quite max out the elevation but pretty close. I'll have to ask him if he got it resolved yet.
Re: Having trouble with a new Vortex PST and elevation
Thanks for all your replies everyone. Bhooker25, I would be very interested to see what your father found out was the problem. I have not reshot the rifle yet but I do not think that the mounting was the problem. I am planning on using this rifle for hog hunting out to 300 yards +. I am a little disappointed with the problem I am experiencing. Once the scope was zeroed it was under an inch with 168 OTM American Eagle pills. That is without practice with the rifle so I know that it will improve. Anyone else have any ideas? I plan on checking my mounting again tomorrow and taking it back out on Monday.
Thanks for all your replies everyone. Bhooker25, I would be very interested to see what your father found out was the problem. I have not reshot the rifle yet but I do not think that the mounting was the problem. I am planning on using this rifle for hog hunting out to 300 yards +. I am a little disappointed with the problem I am experiencing. Once the scope was zeroed it was under an inch with 168 OTM American Eagle pills. That is without practice with the rifle so I know that it will improve. Anyone else have any ideas? I plan on checking my mounting again tomorrow and taking it back out on Monday.
Re: Having trouble with a new Vortex PST and elevation
After checking my scope level I decided to check the level on the rail system and the barrel. The rail system is in perfect alignment with the scope. The barrel is not. It is pointing downward slightly. This seems to be causing my problem. I will report back after my range trip tomorrow to verify my initial findings.
After checking my scope level I decided to check the level on the rail system and the barrel. The rail system is in perfect alignment with the scope. The barrel is not. It is pointing downward slightly. This seems to be causing my problem. I will report back after my range trip tomorrow to verify my initial findings.
Re: Having trouble with a new Vortex PST and elevation
I was able to gain .5 mils in elevation when sighting in today. The rifle drives tacks under 1 MOA. I will be able to get to 300 with the adjustments left available and probably more. I am not going to worry about the barrel at this time as deer season is 2 weeks away.
I was able to gain .5 mils in elevation when sighting in today. The rifle drives tacks under 1 MOA. I will be able to get to 300 with the adjustments left available and probably more. I am not going to worry about the barrel at this time as deer season is 2 weeks away.
Re: Having trouble with a new Vortex PST and elevation
I have the same issue with my 6 x 24 PST.
It is mounted true but when setting the zero-stop shims, I used the entire packet and needed more. It also has almost one full revolution up from the 100 yard zero.
I am going to install a 20 minute base to see if that helps. I am sure it will but is seems odd that a flat base would be so high in the range to require all the shims to get the zero stop to work correctly.
I have the same issue with my 6 x 24 PST.
It is mounted true but when setting the zero-stop shims, I used the entire packet and needed more. It also has almost one full revolution up from the 100 yard zero.
I am going to install a 20 minute base to see if that helps. I am sure it will but is seems odd that a flat base would be so high in the range to require all the shims to get the zero stop to work correctly.
Re: Having trouble with a new Vortex PST and elevation
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Doug S</div><div class="ubbcode-body">I have the same issue with my 6 x 24 PST.</div></div>
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Doug S</div><div class="ubbcode-body">I have the same issue with my rifle.</div></div>
Fixed it for you
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Doug S</div><div class="ubbcode-body">I have the same issue with my 6 x 24 PST.</div></div>
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Doug S</div><div class="ubbcode-body">I have the same issue with my rifle.</div></div>
Fixed it for you
Re: Having trouble with a new Vortex PST and elevation
you can put a shim under the front of the base and gain a little more elevation if you need it.
you can put a shim under the front of the base and gain a little more elevation if you need it.
Re: Having trouble with a new Vortex PST and elevation
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ProImaging</div><div class="ubbcode-body">you can put a shim under the REAR of the base and gain a little more elevation if you need it.</div></div>
Fixed it for you
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ProImaging</div><div class="ubbcode-body">you can put a shim under the REAR of the base and gain a little more elevation if you need it.</div></div>
Fixed it for you
Re: Having trouble with a new Vortex PST and elevation
Outdoorsman,
You are handy to have around. You can fix almost anything.
Oops fixed it:
You can fix anything.
Hahaha
Outdoorsman,
You are handy to have around. You can fix almost anything.
Oops fixed it:
You can fix anything.
Hahaha
Re: Having trouble with a new Vortex PST and elevation
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Outdoorsman9</div><div class="ubbcode-body">
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Outdoorsman9</div><div class="ubbcode-body">
ProImaging said:
Re: Having trouble with a new Vortex PST and elevation
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: gmphk</div><div class="ubbcode-body">I am assuming that you mean the rear base? What kind of shim are you speaking of...? </div></div>
I wouldn't recommend shims. Never used them myself. I was just correcting which direction he said to angle the scope in case anyone tries to do it based on what they are reading here. I would just get a new base with 20MOA built in and be done with it.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: gmphk</div><div class="ubbcode-body">I am assuming that you mean the rear base? What kind of shim are you speaking of...? </div></div>
I wouldn't recommend shims. Never used them myself. I was just correcting which direction he said to angle the scope in case anyone tries to do it based on what they are reading here. I would just get a new base with 20MOA built in and be done with it.
Re: Having trouble with a new Vortex PST and elevation
I have used shims for 30 years when needed. Usually cut up a soda can to the width required. I have never had one cause any subsequent problems. Never had to use more the one shim.
I have used shims for 30 years when needed. Usually cut up a soda can to the width required. I have never had one cause any subsequent problems. Never had to use more the one shim.
