Hi Saxon.
I use N130 solely in the .204, but N130 & N133 in the .223.
All my loads are loaded to Sammi length, but finely tuned the charge using the OCW method.
I only shoot 32's in the .204 and have a variety of weight bullets in the .223 before adopting the same approach with that too. Damned ammunition shortage had me buying a variety of weights because they were in stock
Tikka T3 .204 & .223 Super Varmints - FX Cutlas .22 FAC Air - Sako Quad Varmint .17HMR & .22LR - Daystate Airwolf Tactical .177.