Bench Mark Cut Rifling Barrel

[CharlieKemp]

New CUT RIFLING barrel reverse taper 24 inches long on a Winchester 52D Harrel tuner with tube - Carl Bernosky SB1600 stock MarineTex with pillar bedding - 40 in lbs front 30 inch lbs rear on the screws
Eley 1008-4001 BenchMark cut rifling 4 groove -
wind 2-8 mph 60 degrees clear DA 620
Quick tune up using 50 rounds - started at 250 tested every 25 clicks thru 350 backed up to 300 and picked 310.
Only had time for 80 shots total at 100 yards but it looks like the BM cut rifling will do the job.

 

[tim]

Thanks Charlie. Have any idea what so ever on any bore measurments?

 

[CharlieKemp]

It is a test barrel from Bench Mark - I'll see if I can get the numbers
All the test groups at 100 yards at different settings from the bench did not open up over an inch. The first 80 shots out of the barrel and firing the ten shot bench group not adjusting for wind was impressive not discounting 20X 100 yard prone gave me the idea this is a shooter. I have to pull the action/barrel out of the stock to do the finish work this week and then get down to single clicks and weights for the final tight 100 yard groups. I feel the cut rifling vs. button rifling may be the best but this is only one barrel ( I have two other button Bench Marks that shoot like a house afire also)
Thumbs up on cut rifling from Bench Mark!