I have this Atlasworx bottom metal for Tikka T3/T3X For Long Action used with accuracy international mags you can load COAL 3.715” Also comes with the extended bolt release so you gain the little bit of extra pull in the bolt to be able to eject the larger bullets after you load to 3.715”. You can message me for any questions you may have. I’m asking 100$ Free shipping anywhere in the USA.