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> Sightron S3 6x24 FFP
Sightron S3 6x24 FFP
@ 10:02 pm (GMT) |
Matthew BeckhouseI've had my new scope for a few weeks now. I think the optical clarity is just a little better than the vortex viper 6x24 FFP although I need to take a snellen chart to the range to check properly!I very carefully checked the reticle movement for each click at exactly 100yds. ie 1 MOA should = 1.047 inches @100yds therefore 36 MOA should = 37.7 inches at 100yds For the sightron we repeatedly measured 38.7 inches. Do you think this is a fault, or within the manufacturing tolerances? (I have emailed sightron for an opinion as well). Cheers, Matthew |
Replies
@ 11:36 pm (GMT) |
faulknerRe: Sightron S3 6x24 FFPHi Matthew, I am curious about measuring vs shooting and measuring. Ive tried a few times to hold a rifle in place and dial up and check but between the wobbles and the parallax I get a different out comes when I shoot groups and measure.I have a S3 8x32 and it tracks true to MOA from my zero with a canted 20MOA base up to 35MOA. I had a Leopold that per 1/4MOA click was .22 lower third, .26 middle and upper third was .28 MOA. I make a point of shooting boxes and measuring,,,if anything to build confidence in the scope and its return to zero. Good luck and thanks for sharing. Aj |
@ 12:52 am (GMT) |
Mike NeesonRe: Sightron S3 6x24 FFPHi Matthew, just wondering if you measured the 100 yards accurately. I have been to shooting ranges and sometimes their 100 yds is more a generalization than actually being exactly 100yds. Sometimes 97 yards or 105 etc. This is another variable that needs to be quantified too before you look at the scope. I know Bryan Litz recommends using a tape measure to accurately determine the shooting distance - even at a shooting range. |
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@ 03:37 am (GMT) |
Matthew BeckhouseRe: Sightron S3 6x24 FFPYes, measurements were done using a rangefinder and tape measure.The rifle was held in a vice set-up, so no chance of rifle movement during measurements. |
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@ 03:40 am (GMT) |
Matthew BeckhouseRe: Sightron S3 6x24 FFPI might add that the vertical measurements were performed using a tape measure that was attached to a vertical pole. We didn't measure POI from a shot because it wouldn't be accurate enough for the purposes of this exercise. |
@ 04:28 am (GMT) |
Bob MavinRe: Sightron S3 6x24 FFPG'day MatthewMy 2 bob's worth. Did you check what magnification you were on? Mine needs to be on x10 to read true, Cheers Bob |
@ 04:49 am (GMT) |
Gavin ChauRe: Sightron S3 6x24 FFPits an FFP bob :) |
@ 05:04 pm (GMT) |
Nathan FosterRe: Sightron S3 6x24 FFPHi Mathew. This is the first miscalibtrated Sightron I have heard of if this is indeed the case. When Sightron first began scope production, there was one cheap SII model (now discontinued) which had the slightest error- so fine as to be irrelevant unless shooting at extreme ranges which was beyond the magnification capabilities of this model anyway.If the scope is truly miscalibtrated, it is good that you have contacted Sightron. You may however need to provide photos so that they can see your set up and mention that you used a range finder etc, measuring from the scope center to the target. One thing I need to ask is how high the scope was in its windings. Most scopes struggle if you top them out or get near to the top. A canted base not only provides enough elevation to allow for long range shooting, it also allows the scope to be used towards the center of its turret when dialing. I would also like to know how much windage was dialed in to see if there is any lateral stress on the system. So, please check that you are dialing from a low setting (one of the negative hash lines. Try dialing 10 MOA, then try dialing 20 MOA, then 30 MOA. Also, if the scope is in a fixed vice which puts you at an awkward position, be aware that you may be seeing a level of parallax. Parallax error could easily account for this discrepancy if you were only taking visual observations rather than taking shots. If you were actually shooting out of a vice, I would be equally careful regarding data collection. There is a lot that can go wrong so you will need to be vigilant regarding ongoing data collection. |
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@ 07:22 pm (GMT) |
Matthew BeckhouseRe: Sightron S3 6x24 FFPThanks for the reply Nathan.We were very careful with the setup and measurements on this. The reticle was low-mid range, meaning we had about 20moa below the zero setting, and then went up 36moa to take the measurement. (the sightron has a bit over 80moa to play with). Windage was essentially centred. We took a lot of care with this little test (particularly when the calibration was noted to be out). There was 2 of us, and we went through the measurement 3 times, getting the same result each time. Focus/parallax was adjusted...there didn't seem to be a problem there. I actually wasn't surprised that it was out by an inch. There was a recent review of "high-end" scopes published, which revealed a lot of discrepencies between different brands. If sightron come back and say that is normal for an S3, I will be ok with that. Using the shooter app, I can add an adjustment factor to allow for it. |
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@ 10:50 pm (GMT) |
faulknerRe: Sightron S3 6x24 FFPMatthew sounds like you have covered the usual bases, I wonder if this is a issue with the FFP scopes vs the SFP? Is the scope new? Is it possible that the turret internals need a break in period? I am still very interested in groups C-C fired from this scope if they match the optical testing. This is great topic as every one has either struggled with this sort of thing or they will at some point.Keep us informed! Aj |
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@ 01:47 am (GMT) |
Matthew BeckhouseRe: Sightron S3 6x24 FFPYes, this is a new scope.I have it set up on a custom 7mm-08 for long range hunting. In terms of target use, adjustment of the reticle is quite repeatable, eg I adjust to shoot at 600yds, then it returns and groups nicely at 100yds. My shots did seem to be going high at 1000yds, which maybe is explained by the 10 inch "error" (1 inch at 100yds) but it might also be just my shooting! |
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@ 06:12 pm (GMT) |
Nathan FosterRe: Sightron S3 6x24 FFPOk, if after a period of extensive testing you find that everything has been verified and that the scope is indeed out, it would be good if you could harass Sightron if you do not get an initial response. Sightron have produced many excellent scopes and it would be a shame to see this change in any way. Use photos if need be. Use the phone if need be. I know its a pain in the butt however a bit of time spent being an annoying customer will help keep Sightron on the ball to the benefit of your fellow hunters. |
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@ 04:33 am (GMT) |
Matthew BeckhouseRe: Sightron S3 6x24 FFPFeedback from Sightron!I'm a little disappointed, because +- 5% seems like a lot for a scope designed for long range shooting. ---------------------------------------------------------------------- Matthew, This error is within inside Sightron Manufacturer tolerance level. We have a plus, minus 5% error tolerance at 100 yards per click. On a .25 MOA click value this could range up to from .0125 either direction per click at 100 yards. Let us know if you have any further questions. |
@ 04:12 pm (GMT) |
Paul HorwathRe: Sightron S3 6x24 FFPA friend of mine received the same answer from Sightron 2 years ago, so Sightron is being consistent in responding to this question. They warrant turret accuracy to within 5%.I own three Sightron SIII 6-24x50mm SFP scopes. I've carefully tested the elevation turret values on all three of my scopes. All tested within their 5% error standard. I noted that the newer scope, the 2-MOA reticle, tested with less error than the two older Mil-Dot reticle scopes. I also tested a Zeiss 4.5-14x50mm and a Vortex 1-4x. The results are provided in the below pic. 
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