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ds1

CRS rifle mounted laser rangefinder on 338 Lapua

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After seeing a Radius rifle mounted laser rangefinder at last years international competition at Bzenec I got the idea that it well complimented a traditional hand held laser rangefinder. The stages in the competition typically involved ukd targets, very limited time, shooting from varied positions etc. A rifle mounted laser saved time and let you stay in position on the rifle. For UK shooting, I guess not much PRS type shooting is done, however the application would still exist for long range bunny bashing or shorter range vermin control with a 22 rimfire where you have a rainbow like trajectory.

 

The thing was I did not want to spend 1k dollars on a Radius let alone about 10k dollars on a Raptor, especially when they are bulky and offer some features that I do not need like a visible laser and adjustable mount = more bulk. I searched the internet and found CRS - Custom Rifle Scopes UK had an offering for 160 quid plus 50 quid for an adjustable mount, that could be rail or scope mounted ( well it could if you had a 30mm or 26mm scope tube) in any event I would not mount anything on my scope tube.

 

CRS were very helpful and I bought a laser and mount. The laser has now been on my AIAXMC 338 Lapua for 4 months, withstood 200 rounds and a couple of tactical comps. It has always worked and held zero, so I would say that it is 338 Lapua proof. I first tried it rail mounted above the scope, but did not like it being so high (first pic).

 

http://s111.photobucket.com/user/davids-s1/media/20160728_192051_zpstu20lfnc.jpg.html]20160728_192051_zpstu20lfnc.jpg

 

 

After that I dumped the adjustable mount, screwed and epoxied a qd picatinny mount to it and side mounted it on the AI where I am happy with it. (second pic)

 

http://s111.photobucket.com/user/davids-s1/media/Screenshot_20161101-185911_zpsjseirtpl.png.html]Screenshot_20161101-185911_zpsjseirtpl.p

 

 

 

Things that I like: it is small 8cm long x 4cm wide / deep. It ranges for a continious 20-30 seconds, which it plenty of time. Battery life is decent 1 cr2 last about 6-10 hours. It ranges consistently and accurately been 8-600m ( I don't really need much more than that as longer stages are not so quick). Some features I have not used, fog mode - not tried it, speed ranging - in kmph or mph - don't need it or angle in degrees.

 

Things I did not like, although the remote switch on a cable is a good idea the cable could do with being beefed up - as it is for me I have it hidden inside the AI plastic fore grip so no issue.

 

In use I found that by side mounting the laser it is slightly off to the right and also requires a 4 mill hold over on the reticule which is fine as it is a ranging not aiming device. At that the laser seems parallel whatever the range from 8m to600m - to use it you need to remember to return to zero (100m zero for me) when you range...so zero, range it, dial it, shoot it, back to zero...... It also helps having a FFP scope as the reticule sub-tension is proportional to the magnification. I have noticed that you can range more accurately with it than a hand held laser, in part due to more magnification and in part due to a more stable position ( last weekend it was easy to range a 580m popper and distinguish that from the 600m backstop). As said it is not as versatile as a hand held laser for scanning areas but certainly brings something to the table with its ability to quickly and accurately range targets whilst staying on the rifle and really for 160 quid whats not to like.

 

 

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Very interesting - is it possible you could post more close up photos of the unit including the display showin range readings.

 

Thanks.

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Rob,

 

pic 1 is the unit when I attached the adjustable mount

 

http://s111.photobucket.com/user/davids-s1/media/20160728_192304_zpsjnelpokh.jpg.html]20160728_192304_zpsjnelpokh.jpg

 

 

Pic 2, about the only photo of the display I could find (sorry)...line / range in blue. Battery shows condition in display in yellow. When the laser is sending an arrow shows and angle is shown also. Mode button is the black push button on unit

 

http://s111.photobucket.com/user/davids-s1/media/20160728_192201_zpsazfsly7q.jpg.html]20160728_192201_zpsazfsly7q.jpg

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Thanks - interesting.

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David, how do you collimate it to the scope? (I 'get' the adjustable mount, but how do you know where the laser is pointing?)

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BD, the advantage with the units that have a visible laser built-in is that you use this to sight the thing in, however the extra bulk is always there.

 

With the CRS laser you can use a night vision devise and sight in when it is getting dark as the laser is nv visible or use 2 2"X4" poles at 50m horizontal and vertical with a 100m backstop and adjust it until you read the poles.

 

However I aligned a pen type laser pointer along its iron sights (it has crude ones) and used the laser to sight in as other units.

 

Not looking for it to coincide with the reticule at 100m but to run parallel to it with the heigh and horizontal displacement constant. Some error will be lost in beam dispersion anyway.

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With the CRS laser you can use a night vision devise and sight in when it is getting dark as the laser is nv visible or use 2 2"X4" poles at 50m horizontal and vertical with a 100m backstop and adjust it until you read the poles.

However I aligned a pen type laser pointer along its iron sights (it has crude ones) and used the laser to sight in as other units.

Not looking for it to coincide with the reticule at 100m but to run parallel to it with the heigh and horizontal displacement constant. Some error will be lost in beam dispersion anyway.

Thanks David - very clear, but sounds like a process that could be a bit hit and miss! (Ho ho) :)

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Hi ds1 , I've been looking at getting a mounted system but just for confirmation on some shots at night using NV , I used a friends unit which was the same make as yours but the standard lower recoil option which i used on a 220 Swift . I found the laser was accurate against my PLRF's and good even when using the units open sights SO using the windage mount and different picatinny fixings i mounted it on the rifle .

With the PVS-14 , Dragonfly and the rangefinder it looked like something from Star Wars , My finding were that the laser was showing as a very rough vertical line ( Too long ) through the PVS compared to a small neat square ish laser on the PLRF's . When i looked through the scope at my normal setting of 12x with the Dragonfly switched on with a wide beam setting the laser wasn't visable .

So not being able to use my IR at 12x ended my interest in this unit but then contacting SWR who were really helpful ( Guy called Ehren ) who said his beam worked out to being 195mm x 60mm at 100m and that people were using IR without any issues . Interesting point that he said his units were ' commerce controlled ' so no retrictions to the UK ?

 

OSOK

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That' a fine looking rifle.definately my current favourite.baldie built a rifle recently and it wore that stock.very very nice indeed.great colour 👍

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