To Lorenzo: Yes Lapua Naturalis is expansive also in Europe, but I got recently from my friend in US Lapua Naturalis 270gr bullets for a 50$ for box. He told me that there was some sale out for those bullets. Today this bullet (270gr) is not on the Lapua list anymore.
About 180gr Imapale can put up reload data what I found "somewhere". Haven't try this yet therefore NO Comments. On the Imapla homepage
http://impalabullets.co.za/ you can also find some very good dates.
9,3x62 and 180gr Impala LWHV bullet
Vihtavuori N133 min56gr max60gr 2805-2970f/s
Vihtavuori N135 min58gr max61gr 2805-2950f/s
Norma R902 min57gr max61,5gr 2740-2905f/s
9,3x64 and 180gr Imapala LWHV bullet
Vihtavuori N540 min70gr max75gr 2920-3115f/s
Norma R907 min70gr max76gr 2870-3115F/s