After 2 years of patient waiting for parts, and design considerations, etc.... I finally took possession of my new F-Class rifle.
Nesika, model L action
Lilja 7mm 1:9 twist bbl, 30 inches
Robertson Composite Stock, Ranger Model.
Jewel Trigger
IOR 9-36 x 56mm scope.
Chambered in 7mm WSM (Dave Kiff Reamer)
Chambering, bedding, and lots of other important work by ### rifle works
Unfortunately the snow caused a lot of glare on these pictures.
These groups are with virgin Winchester brass, I only sorted by wt, no load development as yet.
Load:
Berger 180gn VLD
69gn H1000
COL 3.120
MVel ~ 3000fps.
5 Shot group at 200 yards.
5 shot groups at 100 yards.
Second Trip to the Range
I finally got time to prepare the brass I fireformed on my first trip to the range. There is not much give in this chamber, so it took some time for me to get the brass right. Chamber measures 1.7740 to the datum line, after firing the brass ranged 1.7720 to 1.7750. The brass measuring 1.7750 was a very tight fit and needed to be body sized, even then the best I could get was 1.7745 from these. After a second firing most sized 1.7735 to 1.7745.
Below I have posted the 8 loads I tried. The flier in group 'A' is the first shot after I cleaned the bbl, so I have not included it. It seems that 69.2gn of H1000 is the best load, with the highest velocity and least spread, having said that several were similar.
Using the 69.2 gn load, I moved out to 200 and 300 yards. The wind caught me at 200, but I am happy with the vertical spread, it is still less than 0.3 MOA.
My first group at 300 also suffered from the wind, but in the second set, I used the sighter (Right side of target), and then made a 2 click adjustment and fired the group.
Up to now I have less than 180 rounds fired, but given my bbl life it is time to stop experimenting and get out to some matches and have some fun!
Nesika, model L action
Lilja 7mm 1:9 twist bbl, 30 inches
Robertson Composite Stock, Ranger Model.
Jewel Trigger
IOR 9-36 x 56mm scope.
Chambered in 7mm WSM (Dave Kiff Reamer)
Chambering, bedding, and lots of other important work by ### rifle works
Unfortunately the snow caused a lot of glare on these pictures.
These groups are with virgin Winchester brass, I only sorted by wt, no load development as yet.
Load:
Berger 180gn VLD
69gn H1000
COL 3.120
MVel ~ 3000fps.
5 Shot group at 200 yards.
5 shot groups at 100 yards.
Second Trip to the Range
I finally got time to prepare the brass I fireformed on my first trip to the range. There is not much give in this chamber, so it took some time for me to get the brass right. Chamber measures 1.7740 to the datum line, after firing the brass ranged 1.7720 to 1.7750. The brass measuring 1.7750 was a very tight fit and needed to be body sized, even then the best I could get was 1.7745 from these. After a second firing most sized 1.7735 to 1.7745.
Below I have posted the 8 loads I tried. The flier in group 'A' is the first shot after I cleaned the bbl, so I have not included it. It seems that 69.2gn of H1000 is the best load, with the highest velocity and least spread, having said that several were similar.
Using the 69.2 gn load, I moved out to 200 and 300 yards. The wind caught me at 200, but I am happy with the vertical spread, it is still less than 0.3 MOA.
My first group at 300 also suffered from the wind, but in the second set, I used the sighter (Right side of target), and then made a 2 click adjustment and fired the group.
Up to now I have less than 180 rounds fired, but given my bbl life it is time to stop experimenting and get out to some matches and have some fun!
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