Any progress?
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Any progress?
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None, not even sure when it will be started. Still waiting on a progress update. I think I'm gonna go with the 6mm tcu however. I am struggling trying to find the dies for the AI.
It would've been awesome to have the 6mm to shoot p dogs Saturday, it was windy as hell.
Update from a few months ago on my 6mmx45 build. I bought an 18" target crowned match barrel from Black Hole Weaponry and built my upper. I loaded up a variety of cartridges and found that the heavier bullets do not shoot well. I get sub 1"groups at 100 yards with 70grn Nosler BT's and 65grn Hornady varmiter. When I loaded up the 85 grn hornady inter bonds they went to like 7" groups. It's a 1:10 twist barrel. I really want to try some 75-80 grn but all I can find is super bookoo bucks Barnes TTSX 80grn.
I have had pretty good luck working up loads based upon barrel time nodes. I would be happy to help you work up a load. I have to fly
to Michigan tomorrow but if you can tell me what powder(s) you plan to use, I can run them through QuickLoad with your referenced bullet and and target a useable node for your 18 inch barrel.
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Belizejet, you may also want to try the Remington 80 grain PSP, they have them at Specialty Sports for a little over $20 for hundred round green bag.
Anyone have a recommendation for a gun smith to profile a 6mm tube? Didn't work out with Bp.
You might try Hickman Rifles here in the Springs, Earl has been my go to man for all my smithing.
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Hi Guys,
I had a bunch of shit hit the fan with work and my guns, but i'm back now. I got my 6x45 cooking with 3k fps on the loads I posted. I'm averaging 3008fps with the 75gr vmax out of my 20". I'm looking at the numbers and the amount of work and I don't think it's really worth going to the AI after i blew up an upper. SO here's some of the problems I had...BHW barrel was marginally pinned to the barrel extension. When I tried taking the barrel off, the extension moved, not the barrel...O.O....I took the upper into BT and we pulled the barrel off (thanks) then sent into BHW. I got the new barrel last week. I sighted it in yesterday and was very pleased with the results. I don't know why, but everything was right on the money...Only took me 4 rounds to zero the scope. So here's what I'm seeing on my 2 different builds:
20" BHW SS 1x9 tube = 3008fps
16" BHW SS 1x9 tube = 2850fps
Bullet is the hornaday vmax 75gr...http://www.hornady.com/store/6mm-.243-75-gr-V-MAX/
Powder is listed somewhere on the thread here...I can't remember which thread. (8208, 26grs)
cci 400 primers
Groups are .75" at 100yd on a windy day (yesterday was windy), .5" on a good day w/no wind.
The AI was an interesting concept, to gain a couple 100fps more was very very tasty, but after seeing what this did yesterday, i'm dropping that idea. Widners had a huge sale on some sierra 70gr blitzkings, but they're sold out now. I picked up 1k of those for my 16" for blaster rounds.
Going forward....I'm going to get some 87's and run those now that I have the faster twist barrel...but I really think that the 75gr vmax hit's the magic point for my guns. Cannot wait to get my coyotes with em this year...first snow is today!!!
Attachment 53685Attachment 53687I too picked up some of the 70 grain Bltzking's, the ones I got were moly coated. I ran the numbers with Quickload to calculate the barrel time and here is what I got.
Just started working with Barrel Times ; what barrel length are you running?