have a New savage 10 fcpk 308, that shoot 147gr PMC fine, but 175gr SMK FGMM will jam into the throat/chamber, bolt wont close, pull the bolt backward separate case from bullet, spill powder all over.
the over all length is about 2.803", but SMK bullet seem has more bearing surface. already send the rifle back to savage, they polish the chamber etc. but I still can't fire 175gr FGMM after i got it back from them. any ideas? resend back to savage for throated? or what else(maybe stick to 147-168gr, hopefully the throat will get longer after few hundred rd)?

i try to measure the OAL with spend case and SMK like ppl did on youtube, but the SMK will just stuck in the throat/chamber/lands.