First thing you need is to run those is throw them away and get some eldx.
Lol pot stirring
I'm having one built with this reamer also known as the broz reamer and a wyatts mag box.There is an article on Long Range Only by Ryan Mantha you or your smith should read. You/he may already know about it. It is a LR .300WinMag reamer for shooting the 215gn Bergers. Click on Forums/Gunsmithing and it's the 3rd thread down. Good info.
Start with a 1:9 twist, extended mag box, and tell your smith what bullets you'd like to try and trust his trust him.Do i need to have anything special done to accommodate to shoot 215 bergers. iv got a broden timberline action coming matched up with a HC carbon barrel. Lane precision will be building it for me. witch mag box? bottom metal? etc
I haven't shot the Hammers but the 183gr Peregrine's never cease to amaze me.You should really give the 181 hammer hunters a try. I ran the 215 Berger's in mine and the 200 eld. But i just got a new box of hammers.
If you are ordering the barrel make sure you get a twist so you can run heavier monos. You may lose the repeater option but they are very good and amazing on game. You can always shoot the others but it's nice to have the option for monos.