6mm Dasher project

[220AI]

The build and Ultimatum deadline action look stunning Terry, was the action U.K. sourced? The longer necks on the Norma brass was a steer for my reamer and build but as below it didn’t work out.

Thibben,

I had a Dasher for a short time using the Norma brass from March UK but couldn't get anywhere near my target speed with the 105 class bullets. In fact it was slower than the previous barrel chambered in 6BR before I had to quit, because of pressure signs.

I have had similar issues recently with the Norma Dasher brass in a 20 Dasher build, it early days yet but I’ve switched over to Lapua brass which I have been hydraulically formed with the Whidden form die and the pressure signs have gone away with the brass swap. Accuracy over speed any day of the week.

[thibben]

Leeman

No, 2900-3000 seems about right.

220AI

Thank you for the comment re build. Sourced action, stock and barrel thru Gary at March UK. Very knowledgeable, very helpful. Current I’m putting together a clone of this rifle but 22rf based on a Voodu action 😎

Have not seen any issues to date with this brass, I believe it is from a later catch, original batch had rim thickness issues. But not running an ejector might be influencing this.

I have over the years owned a good number of rifles, think this is the most accurate to date.

T