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bruce moulds wrote:the s.africans beat the americans with the 7mm tombi.
this cartridge is as i understand it a version of the improved 7x57, but i do not know finer details.
they used 168 bergers, and won in part by having better verticle than the yanks.
this cartridge would be lovely to shoot, and have excellent barrel life.
bruce moulds.
AlanF wrote:My attitude to the Shehane is this - I already have the dies and a reamer, so will make the most of them. I can run 168VLDs at 2950fps with no pressure problems, and presumably at less pressure than a standard 284. I can run 180s at 2950fps if the occasion warrants it, but may only get 2 or 3 firings from the brass. So the strategy is, use 168s at 2950 as the mainstay (still better ballistics than 6.5-284), or 180s if I can find a good node less than 2880, then if I come up against switchy conditions at the longs in a big shoot, I can have a few 2950 180s ready to pull out of the bag. Desperate situations require desperate measures
I've actually found an accuracy node at that velocity, which makes it frustrating that it can't be the standard load because of the brass problems. However, even at 2800-2850, the 180s have excellent wind drift resistance.
Alan
IanP wrote:...Have you tried RL17? ...
RDavies wrote:So, ballistic nonsense aside, you CAN easily get 2950 fps out of a Shehane, you just get case head expansion, loose primers, or have to use 168gn bullets or RL17 powder.
So if someone was starting from scratch, with no dies, cases, reamers or anything. What 7mm cartridge would the S.A shooters recommend for the windy conditions in the S.A ranges with a 308 bolt face? Are there any other European cases out there which are not yet fashionable, but could be formed into a big capacity 7mm?
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