I have a Nucleus. So far it's seen 2000 rds of .223 and 600 or so rounds of 6 Creedmoor. No hiccups, runs like a champ. I use MDT plastic mags for .223 and MDT 12 rounders for 6 Creed.
I have a few MDT 12 rounders here.
What stock or chassis your Nucleus is in?
Did you tune your 12 round mags whatsoever?
Does the bullet tip hit the feedramp at all or direct feed?
Plenty of people having excellent results with the Bighorn Origin.
Just do it - once you get into a real custom action (like the Bighorn), you are never going to want to touch your Savages again.
That's a harsh statement!
I get that Savage is lower grade than custom actions,
Between my 3 Savages, and 3000+ rounds shot now (2000+ in my main that's using MDT ESS and IBI barrel),
Never had a fail to feed, fire, extract, eject, eff all, just went bang and fed everytime.
When i cycle a tikka yes it is 100x smoother (never cycled any customs other for Ultimatum Deadline), but doesn't mean i'll want to junk my current builds because i suddenly have a higher end one.
Bighorns feed fine from aics mags, had a few and they all worked fine, built more than a few and again no issues. I do how ever find that no matter the brand of aics style mags they all need a little tweaking to smooth them out. Now I just do it before I use them.
AICS mags need tweeking before being used in the Origin?
What sort of tune, feedlip angle?
I am trying to stay away from this and use an action that will use MDT metal mags right off the bat no modifications.
I have a Bighorn Origin in 6.5CM. Feeds no problem out of the MDT 12 round mags. Taking it out for the first time next week (just arrived recently). Feel free to DM me any questions.
I will be in contact via PM with you soon enough,
Exactly what i need, first hand experience.