Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
That 257Wby case is a real good one. And at 6mm, should be a really impressive cartridge. Shoot 70gr BT's and go way fast.A long long time ago I bought this barrel with a certain caliber because it was all the rage and it was hip and trendy. Well I looked at the size of the brass and it's case capacity, and said to myself how the hell am I going to get any speed out of this itty bitty thing it holds just a little more than a 223. Anyways the next day a package came from PTG that I had forgotten about since it was backorder for so long, and said to myself this is no coincidence so I sent my new barrel and new reamer to the gunsmith and told him that I wanted him to rechamber it. He thought I was nuts I said that's beside the point, look it is already profiled crowned and threaded so just stick the reamer where the sun don't shine on this barrel and I will be a happy camper. He called me and asked what I wanted to do with the lazer etching on the barrel I said leave it there or no one will believe me. I crack up every time I think about it.
This is they end result.
PS: For those that are not familiar with this caliber a 6mm Mach IV is a 257 WBY necked down to 6mm or 243.
Dean
Exhibit AView attachment 1235317View attachment 1235318



My first. All original, Marlin, chambered in 17 HMR.
View attachment 1459309



We use essential cookies to make this site work, and optional cookies to enhance your experience.