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Sightron for .270 Win.

13 Aug 2012
@ 02:16 pm (GMT)

Daniel Moore

I see Nathan reccomends Sightron scopes,and though I've never owned one have always heard they're real good optics.So,since I'm just starting in long range shooting(300-500yds. is long for me)what Sightron would be reccomended,1" vs 30mm tube,50mm obj. or smaller,FFP or 2nd,what is zero stop? I need it?I know I'm asking lots of questions,I've been owning guns since I was a teen but never into long range stuff but now that I've found someone knowlegeable about it I'm ready to start learning more.I know a good Sightron won't be cheap,so I've got time to research and ask while I save.Once again,Thanks!This is an awesome site.


15 Aug 2012
@ 09:16 am (GMT)

Steven Smith

Re: Sightron for .270 Win.
I'm in the same boat as Daniel - I'm looking at Sightrons for my new .270 WCF Winchester M70, as well as suggestions for mounts. Until I get a chance to take Nathan's longe range course, I'll be restricted to under 500 yards.
15 Aug 2012
@ 04:12 pm (GMT)

Nathan Foster

Re: Sightron for .270 Win.
Hi guys, I have covered some of this in other areas of the optics forum but will go over each factor.

25mm versus 30mm.
The 30mm tubes are all about light gathering. But to be honest, I find the 25mm Sightrons just as good. The real advantage of a 30mm tube is that it allows for a bulky turret and with a bulky turret comes widely spaced detents between each click. This gives the most positive click value. The 25mm tubes have smaller turrets and smaller detents, requiring a finer feel.

Zero stop is a feature on the Nightforce brand. It can be handy. I don't find it necessary though. The Sightron scopes have hash markings to tell you how many revolutions up you are. My 7mm Practical zero is on the hash negative 1 line. I have this written on my drop charts (zero = #-1). Sometimes a client will use the rifle, dial up and take a long range shot then forget to reset the turret to its zero. No problems, I can look on the sheet (though its committed to memory now) and see that the scope turret needs to be on the -1 line for my usual zero (which is set 3" high at 100 yards for 321 yard zero).

All Sightrons are second focal plane which can be quite useful. For example, I use the 6-24x50 SIII mildot, my favorite scope. The mil dots are .8" in diameter at 24 power. by winding down to 20 power, the dot is exactly 1" which gives me something to work with if I want to assess wind drift. So the second focal plane can be useful in this regard.

Buy what you can afford, thats the key. If I could, I would have a 6-24x50 SIII on nearly every rifle with maybe a 4-16 thrown in for good measure. I have found the 6 power setting on the 6-24 to be fine for taking shots at ranges as close as 10 yards, but I have also used the 4-16x42 out to 1000 yards without fuss and with pin point accuracy.

One thing to be aware of with the 4-16 is that it is a true compact scope, a short little bugger that sits discreetly. On a long action, a 1 piece rail or extension rings are required. These scopes are graduated in 1/8th clicks. 8 clicks gives exactly 1 MOA, very useful on the .308 with its steep trajectory out long.

The 6.5-20x50 is another good unit. It has a 25mm tube and the turret detents (clicks) are very fine but for those who cannot afford an SIII series, this SII series is the top end, the best value for money. Optically it is brilliant, very crisp and clear. Sightron have made one mistake in that they state that the SII is calibrated in inches. This is not true. What has happened is that the Japanese manufacturer has marked the turret with a " sign. Sightron (USA) have then run with this and put this in their brochure. True calibration is MOA. In other words, 4 clicks yields 1 MOA, its absolutely outstanding, working optimally with ballistics software which is always calibrated in MOA. I am going to steal my wife's 6.5-20 to test the new Sierra 350 grain .375" SMK over the next few weeks. I have put that poor scope through hell in the past, nicking off with it and putting on high recoilers for testing.

Rings and bases are fairly straight forwards. I have used all the brands, they all come through here on client rifles. One thing to think about though, is that on factory rifles, during the buffing phase prior to blasting, sometimes the front and rear of the actions are not properly aligned. I had a Howa through here a while back that was so far off the mark, that when two piece bases were used, regardless of the extremely expensive rings the client had on the rifle, his scope was bent when the rifle arrived. Aone piece base can alleviate this strain. With two piece bases, lapping the rings can alleviate problems. But the simplest fix are Burris Zee canted rings with ball jointed self aligning inserts. I try to use these on client rifles, even with 1 piece bases.

A simple weaver rail and Burris Zee rings canted to 20 degrees for long range does the trick. For something a little bit fancier, a 20 degree Warne base and Warne or Leopold rings looks the part, I have this set up on my Practical, but the Burris rings really do take the strain off a scope in the most simple manner. I have used EGW (I think its called) gear, thats quite nice. The Nightforce mounts are nice but they can be very high if you don't shop to spec and go for something off the shelf in a gun store, ending up with a generic high mount system.
15 Aug 2012
@ 11:22 pm (GMT)

jason brown

Re: Sightron for .270 Win.
as somone who owns a sightron, id say go for it!
you really do get alot for your money.

i seen in the shop today a 4-14x50 leupold it was about $2000.
i believe the nightforce is $3500.

my sightron is sii bigsky 6.5-20x50, i believe its at least as good as leupold, probably better. probabley more like a nightforce. even if its not quite as good as nightforce (for whatever the reason may be, for arguments sake). it costs about half the price of a nightforce! and to me thats a good price for quality, and i dont think you will find better. iv found it to be clear and dial back and forth consistantly.
the turrets are re-settable. you sight it in then loosen the dial screws and set the numbers back to zero, re-tighten. so you remember how many lines you are up.(as nathan says) then just turn it back to zero.
i do have a cheap scope on another rifle, different brand. what isnt re-settable and has no caps over the dials, its a real headache.

its really hard to believe the price isnt higher, i just hope sightron dont wake up to this, as i need another scope to replace the cheap one soon as i can.
add it up whichever way you like, read reviews. but it comes down to being a no brainer for me.
(i dont have shares in the company, i was just like the first to posters not that long ago)

16 Aug 2012
@ 01:39 am (GMT)

Daniel Moore

Re: Sightron for .270 Win.
Thanks for the valuable information Nathan,Steven and Jason.I really appreciate it guys.Sightron it is.


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