Forgot to ask if you have checked for any case head expansion?
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Forgot to ask if you have checked for any case head expansion?
If I chances a rifle that is just going to be 'reloaded for like all them are then I also head space it on the brass that they are going to use an make it firm, seams to work for me so far?Quote:
Originally Posted by R93
I would say the brass has had fair bit of a life see, the lapua brass I have used is hard as hell an shows no signs till way up there. Lapua 6.5 284 is hard to get to at moment
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Yes, new brass is on it's way, it'll be Norma but I'm happy as it is working well in my 6.5's and 338 :)
Well, I finally got to take the action out for a closer look at what's what (hadn't done it before as the owner wanted to shoot with it before xmas), and pretty sure that it's the fact that it is free floated right up to the recoil lug that is the problem :wtfsmilie: Conventional wisdom is that it should be bedded to about 2" forward of the lug.
So guess that's the next step in the saga, along with starting with new brass, so it's watch this space ! :)
I only bed in front of the recoil lug if it has a parallel Knox for inch or 2, if it tapers straight from the recoil lug I don't bother as the heat of multiple shots will throw it out with uneven pressure. . . . . . . Personal thoughts anyway.
Hmmmm, you could be right, it is tapered, and the reference i was looking at does have the parallel knox. Didn't notice that :oh noes:
Bugger, back to the drawing board. . . :faill:
It just not group red? An speeds not up there still?
Could just have got a tube that dont like to go fast no matter what you put up its arse
Hi All ,
I was running one of these in 6.5-284!!
http://i115.photobucket.com/albums/n...0/IMG_1150.jpg
A RPA acton with a Border 26 inch / 1 in 8.5 twist / Border barrel..
Bullets wise , i tried the 140 A-max / 139 scenar / 142 sierra / 140 Berger VLDs - all shot very well but i stuck to the 140 A-max because of good accuracy and expansion!!
Powders i tried was H4831SC , Viht N165 , Reloader 22 , H1000 - stuck to H4831SC as it worked well with my rifle!!
So the load i ended up with was 50 grains of H4831SC with the 140 A-max touching the lands.
This would give me 2800fps and if i went a half a grain up , i would get a sticky bolt showing pressure signs!!
Heres one of the groups from long range testing!!
http://i115.photobucket.com/albums/n...0/DSCF0849.jpg
Now heres a funny thing ,
I now run a Tikka T3 semi custom in 6.5-55 Improved with a 24 inch ( 1 in 8 twist ) Krieger tube.
http://i115.photobucket.com/albums/n...0/DSCF4244.jpg
When load developing with the Berger 140 grainers and Viht 160 i was able to get 2900fps!!
But now have settled for the 123 A-max:thumbsup:
Rayzor, very nice bits of kit !
Abe, speeds are fine, at 2800+, but groups all over the place. I think new brass will make the difference as the 'feel' through the dies and seaters differs quite a bit. I strongly suspect the brass might have come from another rifle, or it's been well stretched. Some of the pre loaded rounds had to go through the body die before they would chamber !
Will be good to see if nice new softer brass help red, neck tension might could be uneven through out the brass you have?Quote:
Originally Posted by redbang
It looks like it's sorted now Red ;)
http://i1004.photobucket.com/albums/...s65-285001.jpg
I found a load it likes, with good speed out of the Norma brass :thumbsup:
Not to bad for gusting 3-7 mph wind, hole at the bottom is the first shot that didn't fall where I thought it would so I moved up a target dot.
Whose a good boy then ! :thumbsup: