Yup, today was a good day for a M1C Garand sniper range test too.After a lot of searching I finally got the proper receiver bracket and a Griffin & Howe mount for my M1C. I had some difficulty in getting the rings to secure to the base with the 2 screws which pass thru the base from the bottom,and found that I needed to insert a .004 piece of shimstock between the rings and the base to draw them up tight. After getting a 25 yd zero I moved to the 100 yd bench where I fired seven 3 shot groups with using three of my proven Garand handloads.Groups ranged from .5" to 3.1 " with an overall average of 1.41". I was pleased that the scope rings remained secure and that the vintage Lyman Alaskan scope allowed positive adjustment and retained it's zero as well. This level of accuracy is consistent with what I have experienced with my M1D over the past 10 yrs. As Sten says,the sniper Garands are not at all comfortable to shoot due to their offset scope,but it is satisfying to find a good level of accuracy with what was state of the art nearly 65 yrs ago.With the low power 21/2x scope you really don't gain that much over the conventional iron sights,but the added target resolution is certainly helpful. For comparison, I also fired seven 3 shot groups using the standard aperture sight from an Italian Tipo 2 7.62mm Garand that I built on a Breda receiver. Group sizes with this rifle ranged from .75" to 3" with an overall average of 1.5"-just about the same as the M1C.
On the topic of authentic Garand sniper rifles,the M1D is especially difficult to establish as bona-fide military issue, as many were assembled in civilian hands using surplus M1D components. The US Army assembled these on any make and vintage receiver,so You cannot pin them down to make or serial number range.The best way of establishing military provenance is with US DCM or CMP documentation. There are a number of legitimate military M1Ds in circulation in Canada by reason of the imports from Denmark 10 plus yrs ago.In addition to the proper M1D barrel,these rifles will show the rifles serial # stamped on the stock (mine is on the top edge of the stock below the op rod handle,contrary to the normal Danish practice of stamping the serial number on the botton of the buttstock)and will have the correct M84 scope marked with the Danish FKF/Crown/inventory number. The M1C sniper rifles were built by Springfield Armory as a production item and will bear serial numbers in the 3 M range. Only 7971 M1Cs were produced and the serial numbers can be verified as legitimate by the Garand Collectors Association with a high level of confidence.
In addition to the Garand snipers,the M1903A4 Springfield is also highly collectable and can be an excellent shooter with the eternal .30-06.In my opinion these are the equal of the No4 T,their only shortcoming being their somewhat fragile Weaver scope. There were only 28,000 of these produced and they are beyond fakery due to their unique receiver markings.