Breechplug
I'd be willing to use whatever bullet works out of it and does the job with accuracy and preformance. When all said and done with the cost of the ML and the custom job, what's it cost??? What do I need to buy and have done to get one of these?
Well fortunately the Remington 700 ml will shoot justa bout anything you can put down the bore - so you would not have a look to hard for a good bullet.
Since the 700 is no longer made you have to watch the auction sites or local gunshops... Probably could pick one up for $200/$250 - then you need a 209 Convsrsion $60, and finally the bolt conversion $60 - so really it is kinda expesnive to get into one - and you still have a used rifle....
You can probably find a used Knight DISC Elite (preferred) or Extreme for about the price of a used Rem and would not need all the conversions....
The other thing if every thing goes right... you might be able to buy a new Knight Ultimate Slam in the future...