Hey folks, been a long while since Ive been on here. Ive had an idea for a custom project, and I need some help/advice with regards to selecting a chamber/throat reamer.
I am a bit of an old soul, very nostalic and appreciate competitive history. I shoot competive highpower prone and XTC, and primiarily use bolt actions, with an emphasis on the trusty old Winchester model 70. That said, I would like to rebarrel one of my model 70s into somewhat of an oddball cartridge, at least in modern times, the 219 Donaldson Wasp.
Now I know, Wasp doesnt exactly screem bolt action repeater, but from a single first prone standpoint, it doesnt really matter. However, the alteration I would like to do is use 225 Winchester brass, instead of 30-30 brass to delete the rim, and go to a 0.473 bolt face. I believe all other case body dimensions are the same, and any small imperfections would be formed out during the first firing anyways.
So my question is, can I order a "standard" long version 219 Donaldson Wasp reamer and just run the 225 Winchester brass? I dont believe anything in the rim/bolt area affects the chamber reamer anyways. Also, who would you recommend to make such a reamer? This is an odd enough duck, I plan to buy the reamer and send along to the gunsmith for chambering.
Lastly, I plan to shoot primarily 90gr bullets in this thing, and my belief is it should outperform a 22 Nosler. So my 2nd question is regarding to barrel twist and custom throating? Is 1:7 twist enough at Wasp/Nosler velocities, or should I go faster to say 1:6/5?? WIth regards to chamber throating, how is that done exactly, so the 90s can be seated out as to not take up too much powder space?
Thanks for all the advice!!!
I am a bit of an old soul, very nostalic and appreciate competitive history. I shoot competive highpower prone and XTC, and primiarily use bolt actions, with an emphasis on the trusty old Winchester model 70. That said, I would like to rebarrel one of my model 70s into somewhat of an oddball cartridge, at least in modern times, the 219 Donaldson Wasp.
Now I know, Wasp doesnt exactly screem bolt action repeater, but from a single first prone standpoint, it doesnt really matter. However, the alteration I would like to do is use 225 Winchester brass, instead of 30-30 brass to delete the rim, and go to a 0.473 bolt face. I believe all other case body dimensions are the same, and any small imperfections would be formed out during the first firing anyways.
So my question is, can I order a "standard" long version 219 Donaldson Wasp reamer and just run the 225 Winchester brass? I dont believe anything in the rim/bolt area affects the chamber reamer anyways. Also, who would you recommend to make such a reamer? This is an odd enough duck, I plan to buy the reamer and send along to the gunsmith for chambering.
Lastly, I plan to shoot primarily 90gr bullets in this thing, and my belief is it should outperform a 22 Nosler. So my 2nd question is regarding to barrel twist and custom throating? Is 1:7 twist enough at Wasp/Nosler velocities, or should I go faster to say 1:6/5?? WIth regards to chamber throating, how is that done exactly, so the 90s can be seated out as to not take up too much powder space?
Thanks for all the advice!!!