6mm Dasher project

[thibben]

In search of an accurate rifles for range use ended up going for the 6mm Dasher which is traditionally formed by ‘blowing out’ the 6mm BR case, but in the process you loose some of the neck length that give the original BR case its accuracy. Norma now produce a Dasher case but with the original neck length - so that was the base of the build.

https://ibb.co/2gW8GyW

Action is the Ultimatum deadline which has a few nice features, short bolt throw and in this build no ejector as it is a single shot and I’m in no hurry

https://ibb.co/2gW8GyW

Barrel is a Benchmade from March Scopes UK, have used these on a few builds now and very pleased. Trigger tech trigger used ans set at around 1/2 pound. Stock is a Gunwerks carbon fibre Verdict and fully adjustable with a very neat ‘poop off’ cheek piece for easy cleaning. Scope is a March High Master 10-60 x 56 in March Uk rings. The integral rail on the action is 20moa.

https://ibb.co/x3DXtVj

In developing the load I tried for the first time the ‘10 round’ method which gave 2 nodes, further testing and I settled on the lower node which uses 32.4g of IMR 4166 under the Berger 105g Target hybrid and yields a MV of 2940fps out of my 27” barrel.

First trip out to 1000 yards a couple of weeks back was very pleasing, 1st round down the ‘very clean from storage’ barrel was low the rest in the V with a fish tailing wind only requiring aiming edge to edge of the bull - big grin time

https://ibb.co/pnzDRbH

The rifle is quite heavy and most definitely a range tool but does what I wanted, simple to load for, accurate and consistent and at the lower node not a barrel burner.

[JB101]

Nice build and great results
I love my 6mmBR
The 6mm's are great,easy to load,economical on powder & very accurate
Out of interest what dies are you using
ATB
James

[thibben]

James

thank you for comment.

Wilson FL with neck bushing sizer and a Forster Micrometer BR seater.

FYI Use the above in conjunction with a Sinclair de-priming tool and one of their carbide expanders, both as separate operations.

T

[Elliott]

Crickey, what size group is that at 1,000 yards? That's quite the tool!

[thibben]

Crickey, what size group is that at 1,000 yards? That's quite the tool!

They are 1moa squares On the electronic target and a TR ring size so actually not as good as I’d like

the wind was fishtailing so I was keeping up with that by aiming L & R of the target, but the elevation is a little up and down for my liking, but as it was first time at distance and the scope was both on canted and a bit too far back I was pleased.

Just need the local tunnel ranges to open and I can sort the finer detail?

T

[Elliott]

They are 1moa squares On the electronic target and a TR ring size so actually not as good as I’d like

the wind was fishtailing so I was keeping up with that by aiming L & R of the target, but the elevation is a little up and down for my liking, but as it was first time at distance and the scope was both on canted and a bit too far back I was pleased.

Just need the local tunnel ranges to open and I can sort the finer detail?

T

So you're looking at 10" at 1,000 yards?

Not bad! Well done.