factory ammunition

Hi There, Does anyone know what bullet heads Sako uses in their 150gr .308 Superhammerhead ammunition? Thanks Tom

Advice needed. I have recently changed back to using a 6.5x55 to allow for non-lead ammunition. Sako 120 gr Barnes TTSX groups well but first few chest shot deer (roe) were all through and through with virtually no expansion or blood trail. All ran 50 yds plus. Luckily the teckles found them...