I have a buddy who has built two of them.

Brian Litz wrote an article on scaling BC and in theory .277 is the sweet spot but sadly the bullet makers are focused on .264 & .284. So there is the bullet issue.

Brass is a big issue. Nosler isn’t supporting their own cartridge and it is pretty much dead to Nosler. Peterson made a run of brass but there will never be support from the other boutique brass makers!

I would build another 27-300W but I understand the urge to fiddle with stuff. I would get a twist of 1-8. I am using 1-9 in my 270W’s. Have had three and have had good results.


“Perfection is achieved not when there is nothing more to add, but when there is nothing left to take away”.
Antoine de Saint-Exupery. Posted by Brad.