wildcatter
Silver $$ Contributor
I found this on the forum several months ago, it was a 16.8# 6mm Dasher and was a good price from Brandon C who had just built it and decided to go another route! So did I, when it came I never fired the first shot in it, as to me the 28" barrel was a bit long for a Dasher, or a 6x47L for that matter to suite my preference.
So in no hurry I took it to my smith and had him check the timing and firing system which needed a little tweaking. I then had just built the 6BR Norma on the Axis for a 600 yard match rifle. so was spending the spare time this summer getting it dialed in,, which I did with GREAT SUCCESS!! But the past 3 or 4 weeks, when it was worth some testing in these late fall early winter weather patterns I am starting to see a light at the end of the tunnel.
I have only tried H4350 in it with less than 50 rounds thru it fire forming, The last loads, with 38.5 to 40.5 grains were showing some promise just shooting 3 and 4 shot groups. I was mainly trying to find what kind of consistency I could expect, and some descent groups before getting into seating depth and neck tension. This rifle truely appears to be willing to shoot, but I don't plan to get real serious yet going into winter.
After the initial testing at 100 with first a 3 shot then a 4 shot group with 39.2, 39.5, and 39.8 grain loads, it kinda showed it liked the 39.5 the best, so I loaded 5 each and started seating a tad deeper in the rifleings from just off to touch with the the initial loads. It seemed to like the .008" jam better than the .003" jam, as 3.105" oal is just touching.
I was happy and looking good, but with plenty more d=room in my cases, before I started a tuning frenzy with just trying one powder, Monday of this week I decided to try some H4831,,,, and am I glad I did! I don't see a great gain in accuracy yet, as the two targets above are holding right at .250" moa with the H4350. But running around 20fps ES, one slightly over, and one just under.
But the first day out with 4350, ES were unbelievable, and again, no depth testing or neck tension, just the very first 3, 5 shot groups, and only at 100 yards, but without wind flags and mainly just testing velocity and consistency,,, still keeping 5 shots in the .4".s without any wind flags in switchy light wind! These are 108's, in both powders, and I am going to work first with the H4831!
Next time out with the H4831 I plan to take 41.5 and 41.9 as well as 5 at 43.1. I don't what the 42.2 would have registered, but will reshoot it too, and see, but I didn't want to stop and mess with the chronograph in the damp hazy weather, but after the first group I removed the ski screen's and it clocked the last two loads fine. The good thing is, I'm not even able to see the beginning of a burr on the primers with the first two loads, and barely with the 42.8 grain load. At any account, take on shot from any of those groups and I'm in the .2"s.
Time will tell but I think I am starting to feel better about deciding to go with the 6x47 Lapua! I'm getting enough speed to make me happy, and I get under .250" moa's, without stomping the guts out of my brass, this should be very easy on barrels, and no more than I shoot 600 yards, be quite satisfactory. All in all just getting started with it, I'm happy!
So in no hurry I took it to my smith and had him check the timing and firing system which needed a little tweaking. I then had just built the 6BR Norma on the Axis for a 600 yard match rifle. so was spending the spare time this summer getting it dialed in,, which I did with GREAT SUCCESS!! But the past 3 or 4 weeks, when it was worth some testing in these late fall early winter weather patterns I am starting to see a light at the end of the tunnel.
I have only tried H4350 in it with less than 50 rounds thru it fire forming, The last loads, with 38.5 to 40.5 grains were showing some promise just shooting 3 and 4 shot groups. I was mainly trying to find what kind of consistency I could expect, and some descent groups before getting into seating depth and neck tension. This rifle truely appears to be willing to shoot, but I don't plan to get real serious yet going into winter.
After the initial testing at 100 with first a 3 shot then a 4 shot group with 39.2, 39.5, and 39.8 grain loads, it kinda showed it liked the 39.5 the best, so I loaded 5 each and started seating a tad deeper in the rifleings from just off to touch with the the initial loads. It seemed to like the .008" jam better than the .003" jam, as 3.105" oal is just touching.
I was happy and looking good, but with plenty more d=room in my cases, before I started a tuning frenzy with just trying one powder, Monday of this week I decided to try some H4831,,,, and am I glad I did! I don't see a great gain in accuracy yet, as the two targets above are holding right at .250" moa with the H4350. But running around 20fps ES, one slightly over, and one just under.
But the first day out with 4350, ES were unbelievable, and again, no depth testing or neck tension, just the very first 3, 5 shot groups, and only at 100 yards, but without wind flags and mainly just testing velocity and consistency,,, still keeping 5 shots in the .4".s without any wind flags in switchy light wind! These are 108's, in both powders, and I am going to work first with the H4831!
Next time out with the H4831 I plan to take 41.5 and 41.9 as well as 5 at 43.1. I don't what the 42.2 would have registered, but will reshoot it too, and see, but I didn't want to stop and mess with the chronograph in the damp hazy weather, but after the first group I removed the ski screen's and it clocked the last two loads fine. The good thing is, I'm not even able to see the beginning of a burr on the primers with the first two loads, and barely with the 42.8 grain load. At any account, take on shot from any of those groups and I'm in the .2"s.
Time will tell but I think I am starting to feel better about deciding to go with the 6x47 Lapua! I'm getting enough speed to make me happy, and I get under .250" moa's, without stomping the guts out of my brass, this should be very easy on barrels, and no more than I shoot 600 yards, be quite satisfactory. All in all just getting started with it, I'm happy!
