I
ordered a Forster neck sizing die with bushings. All I use in that gun is Norma brass and Berger bullets I do have 200 rounds of Lapua brass a friend gave me but I put that aside for nowfor the cost, of a competition set ... it would really come down to how much i shot the rifle, it would also depend on the consistence of the neck wall thickness of the brass you are using , id bet your Norma necks are very good so it would be worth it IMO.
type s neck
https://www.midwayusa.com/product/1018049354
body die
https://www.midwayusa.com/product/1018046992
then use your existing seater
but if you were shooting lessor quality 223 cases , no chance i wouldnt bother ..
sometimes you can neck turn your brass to better fit your existing die ( measure your sized down down diameter , with expander removed ) .. might be cheaper option
back to priority, of why do you think the rifle didnt fire ??