My point is the loads seem to shoot the same whether the case is formed or not. I've never seen a change in point of impact or pressure. So once you find a good load, just shoot it from either original cases or formed cases, as long as you can make the powder fit. The long neck on the 6 and 7 mms helps.
ackley
- Thread starter huntwithme
- Start date
Help Support Long Range Hunting Forum
hunter67wa
Well-Known Member
Fireforming isnt a problem if the smith did his or her job correctly. As long as the base is jammed against the bolt when forming you will have perfect brass.
I ai a 223 as I shoot a lot and it reduces trimming which I would rather use the time fire forming and then shooting not trimming.
I ai a 223 as I shoot a lot and it reduces trimming which I would rather use the time fire forming and then shooting not trimming.
FF isn't a problem, you just can't use the same powder charge as the ff case can. Smiths can't help that 
hunter67wa
Well-Known Member
Correct I use my normal 223 load and shoot p-dogs with it as they shoot great then viola brass. Then load your ai load make a scope adjustment and your off. The smith makes a difference on how they chamber a ai so your brass will come out correctly.FF isn't a problem, you just can't use the same powder charge as the ff case can. Smiths can't help that
I have 2 6mm x 284 very nice caliber. I have been using herein Md. and Pa woods for around 10 years. 1 has a douglass and other is a factory 243 opened up. For white tails in my area I just use the Sierra 85 Bthp. It is very divesting most of the time dropping them in there tracks. I use 53 grains IMR 4350 with the 85 getting around 3450. My buddy that put me on them has taken like 26 bull elk since 1978 with it using the old nosler 100 grain sb. I was with him on 2 of those kills out to 600 yards. Now you can get 6.5 x 284 brass making it one less stage of stepping down. When I first started using the Winchester 284 brass I would run it through the 6.5 x 284 die then the 25 x 284 die before final run thru 6mm x 284 die. The extra little process has worked very well and I have reloaded some cases 5 times before primer pockets get loose. I have heard of a few guys splitting necks after first or second firing , they did not do the step down I mentioned. I have tried several powders none have gave the velocity and accuracy that IMR 4350 has. I do have another buddy with one again just 243 opened up, he uses the 95 bergers and has made some nice long range kills. I will say the the 85 sierra I mentioned is not a long range bullet but out to 500 its very efficient.
Im finishing up with a 260 Ai and I have never been so happy. This is one efficient chambering. I settled on the 120 nosler bt and the berger 140 hunting vld. Both bullets does not like to shoot over 1/2" moa and each one a few imes got in to the 3's. My vel. for the berger 140 is 3095 and the nosler bt 120 3140. 26" 3 contour 8 twist I can carry anywhere.
Hand Skills
Well-Known Member
I don't have the numbers in front of me, but I believe 6mm Rem / .257 Bob benifets from akley-izing the most. That 7x57 case it's built on has a lotof body taper which leads to bigger gains.
Why not neck it up to 6.5mm while you're at it, you could stamp the barrel 6.5 Creedmost
Why not neck it up to 6.5mm while you're at it, you could stamp the barrel 6.5 Creedmost
Nice thing about ackley is that it's just a normal old chambering. Nothing special needed to run the reamer. Neck/shoulder junction is about .004" shorter on the ackley to get the crush you refer to.
yes, so far, no problems. But I suppose all cartridges don't react the same. But in any event, the brass forms to the camber, in micro seconds, I con't see why a a heavier charge would make any difference. Ackley expected people to shoot factory loads safely. I always start with the maximum load listed by hodgdon for the parent and work up,, but when I find a load that works, I shoot it in formed and unformed cases.
Why make an ai if you are using a normal charge?
- Joined
- Jan 26, 2015
- Messages
- 1,779
Sounds like he's beginning with a max charge and.working up. If I understand correctly, he seems to be firing an AI load in the parent case. If not, sorry for the misunderstanding.
Hand Skills
Well-Known Member
I think the question was rhetorical
I had some cases separate when using max loads to ff. After they were ff than I could bump the charge up. Example:
My ff loads at 39g varget separated some heads on Rem brass that was necked down to 7-08 with a bit of crush when sizing. Even separated some with lc71. After they were ff, I was able to max it out at 43g.
My ff loads at 39g varget separated some heads on Rem brass that was necked down to 7-08 with a bit of crush when sizing. Even separated some with lc71. After they were ff, I was able to max it out at 43g.
