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Have you guys done any testing of dedicated .17 designs? Given the low gas volume and high projectile velocity, I'm curious what effect bore diameter might have on performance.
I was told less than a month via message a week ago. I’m eager for the NHS for my comp gunI'm curious about progress on the NHS.
It’s done as far as I know.
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On the above 6UM, on sandbags the reticle moves down 2 mils. Even on a 9.5lb 6.5cm it recoils down .5 to 1.0 mils or so.
Is that even a good thing to have that much downward force on the muzzle?
Would US entertain the idea of doing a small run of OG7 cans? Just a 7mm version of the OG6.5? I like the idea of an OG 6.5 but would like to use it on 7prc as well.
I can see it not being worth it to develop and sell such a can between the 6.5 and OG versions, but maybe a single batch with enough commitments?
@Formidilosus do you happen to know if the 6.5mm end cap for a reaper will fit a 7mm projectile through it more than once?
Would US entertain the idea of doing a small run of OG7 cans? Just a 7mm version of the OG6.5? I like the idea of an OG 6.5 but would like to use it on 7prc as well.
I can see it not being worth it to develop and sell such a can between the 6.5 and OG versions, but maybe a single batch with enough commitments?
I appreciate your response. I'm confident in my threading (done by bartlein) but my concern is that I have an adapter from 1/2 to 5/8. I'm also fairly confident it will align, especially since it's so short past the muzzle, but it's not a small investment.Not US endorsed.. But i have shot my OG6.5 on a 7 SAUM without issue, definitely checked alignment first. If a good smith did the muzzle threads it should be fine. If it's a price point factory rifle it might be a bit more of a gamble.
When this topic came of previously (because UM did durability testing with a 7RM on the 6.5 OG and people had questions), i think they said they typically spec bore size 0.050" or so larger than rated caliber.
I appreciate your response. I'm confident in my threading (done by bartlein) but my concern is that I have an adapter from 1/2 to 5/8. I'm also fairly confident it will align, especially since it's so short past the muzzle, but it's not a small investment.
My question, with that in mind, is what can be done if it's purchased and approved and it doesn't align?
Rethread the barrel to 5/8 done perfectly concentric to the bore. If the barrel diameter is to small have it threaded with a .75 shoulder collar like kampfield does.My question, with that in mind, is what can be done if it's purchased and approved and it doesn't align?
I'm already at 20" with a 7prc. The additional cost in this, plus going shorter than advised with 7prc for most cans, makes this an option I don't want to pursue, but it might not be a bad backup plan. Thanks for the suggestion.Rethread the barrel to 5/8 done perfectly concentric to the bore. If the barrel diameter is to small have it threaded with a .75 shoulder collar like kampfield does.