Awesome - thanks for your reply - I wouldnt have considered the throat lenght and because of using light bullets I will need a short throated chamber. Youve saved me a rather large headache as i would have chambered it with a standard reamer.

Brilliant thanks for your help - I have ordered a barrel and dies so its all happening. Any suggestions for starting loads for 85-87 grain projectiles? Have you found a favourite projectile/load combination?