My son is an Alaskan guide. His outfitter he worked for, a very knowledgeable gun man, had installed a Ruger factory .375 Ruger barrel on a tang safety Ruger 77 7 mag. for my son to use in his guiding. Son brought that rifle along with us on a Kodiak Island bear hunt as a back-up rifle. On that hunt we realized that he'd have to use the rifle the following day to search for a wounded bear. That evening in our tent, I asked him if the rifle fed reliably so we took some rounds to see. They did NOT. I believe they were reloads. So based on that example of 1, I would say feeding COULD be an issue. Just my 2 cents worth.
Sounds like a terrible time to discover that! Hope you didn’t need it!
