I've just sold my .17 HMR and have decided to build a foxing/plinking setup with a bit more grunt in .223 Rem. This will be my first build so these are probably some quite basic questions despite quite a bit of research. Initially, I looked at Remingtons as a base to build on but I've decided that I simply don't like them enough to go through the hassle of building on. I looked at Tikkas because of the ease of getting aftermarket parts, etc. but don't need a long action which is the only size Tikka do.
So... I'm looking at Sako 75's but have a few questions.
1. Were 223 and 222 the only two calibres that used the No. 1 action?
2. If I can't find a No. 1 action, could a No. 3 action, bolt, extractor, magazine, etc. be adapted easily for 223? I ask because the No. 3 action would also give me the option of a longer cartridge in the future.
3. Are the bolts calibre specific on a Tikka action?
4. Is there a custom action that has a wide range of readily available aftermarket parts like stocks, bolts, etc? Not Howas, Remingtons, etc. Actual custom. Not a huge fan of round actions.
All help gratefully received!