107 Matrix

[jfarrell]

I have some 107 6mm Matrix bullets for my 6BR and was wondering where they like to be seated. Any advice?

 

[kombayotch]

In the neck of the case would be a good starting point.

 

[K0na_stinky]

Not sure on seating depth but once you start testing let us know if the BC is as good as they say. 0.511 might be the highest I have seen in the 105-107 gr class.

(Just checked JLK and they claim 0.560 for their 105 but I call BS)

Thanks.

 

[kevin9934]

if they performe like their 140 it's not BS

 

[jfarrell]

what I was wondering is do they like being jammed or off the lands

 

[Tcon]

I am interested in the matrix but I have been doing some fireforming load development with the Hornady BTHP Match 105's.
They are significantly cheaper, available everywhere, marginally lighter and have a higher claimed BC (G1 0.533). Has anybody been able to confirm their BC?

 

[Crashman]

I can't comment on the 6mm 107s, but my 260 likes the 142s with a light jam, 5 thou is about right for my set up.

 

[244Ack]

what I was wondering is do they like being jammed or off the lands

I run them 10 thous into the lands in my 6 dashers

 

[.284]

Can't comment on the 107's but I run the 6.5 150's 10 thou off the lands and found the 6.5 142's fairly tolerant to various jumps.