I have had Hendershots load the 170 grain Oryx. With the Oryx I have taken Sable, Waterbuck, Puku, Lechwe, Warthog, Impala, Blesbok, Wildebeest, whitetail, and hogs with zero failures. With the 7x57 I have tried Accubond, Swift Aframes, Northforks and the Oryx I feel performed the best at all ranges. I attribute that to the moderate velocity of the 7x57 coupled with a bullet that is tough but will open at lower velocities. I have 170s loaded around 2500fps.I noticed they loaded a 170gr for several other 7mm cartridges and figured maybe a handload or a custom loading from either of those 2 sources
I reload the 170’s. I don’t think I have ever seen 275/7x57 factory 170 loads either. I have some 160 TipStrike and 170 Vulkan loaded to try as well.I don’t think they make a 170gr 7x57/275 load anymore. On their website they only offer the 156gr 7x57 Oryx load.
no I haven't tried to chamber a 175grain 7mm in the high velocity 275 rigby ,, nor have I measured it . the older 7mm were a more rounded bullet compared to the 140 HV so they may have been a bit tightHi pjaln,
Nice Rigbys!! I would like to know if you have measured the chamber throath lenght in the HV one that have a barrel not original, or if you have tried to chamber a cartridge with heavy round nose 170 plus grs.
Thank you!!
CF