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Re: 223 sierra tipped 69gn matchking
Posted: Wed Aug 15, 2018 5:04 pm
by Maggot
Blackstuff wrote:No problem, didn't read like that to me at all, the joys of text and not speech eh!
Yeah the ones i got were actually sent to me by mistake, they were brand new out at the time. They were a lot more expensive than the standard SMK's so thought i would try them but i was having to put them so far into the case to get them to fit in a magazine that the neck was no longer gripping the bullet because it was on the ogive.
Blimey
Re: 223 sierra tipped 69gn matchking
Posted: Fri Aug 17, 2018 10:41 pm
by Del
well guys i seated at 2.250" done loads 21.4gn , 21.6gn 21.8gn and 22gn so far all grouped with in 1" at 100yds av just made up my second batch going up 22.2gn , 22.4 , 22.6 and 22.8 just waiting on the weather to calm down and see how they go
thanks for your help
atb Del
Re: 223 sierra tipped 69gn matchking
Posted: Sun Aug 19, 2018 12:39 pm
by Maggot
Mattnall wrote:Seat them so they fit and feed from the mag easily.
No idea on powder charge, but it sounds about right (somewhere around 24gn of a suitable powder is the norm). Try changing the powder increments by 0.5gn and then when you get near the mark make a few minor adjustments around that load, will save time and powder.
Any reason you didn't go for the 77gn SMK (or TMK) with that 1:8" twist?
Oi....You the Matt I know?
This was my take, half a grain at a time. Unless you weigh each charge (I do) you could be over .5gr error anyway.
Re: 223 sierra tipped 69gn matchking
Posted: Mon Aug 27, 2018 6:32 pm
by Del
well here are some of the results still playing with it all shot at 100yds the low shot on the 21.4 gn was me i pulled the shot then 3 all within an 1inch done 21.4 again just to check and still got to do 22.6 and up going to do 22.4 again aswell