Reloading 6.5MPC?

[hawk-eye]

I got a wildcat I am trying to dial in and was wondering if anyone knows anything about this round. 6.5 MPC( or 6.5x42)
Basically a 5.56 case cut down 3mm and the mouth is stretched to accept a 6.5mm bullet.

Runs out of an AR.

I run 120gr boat tails at 19gr. of IMR 4227, but don't know if this is the best load for the round. The round doesn't show any over pressure signs and it goes pretty fast, but the powder choice is questionable.

I want to run 100gr as well, but not sure how much powder I need or which powder to use.

Running dry when I search for load data. No real data from the manufacturer,SSK Industries.

Any help appreciated.

 

[SpeedyR]

here's a few that I found:

http://www.loaddata.com/members/search_detail.cfm?MetallicID=7386

some good info here as well as SSK reloading data:

http://www.ar15.com/archive/topic.html?b=3&f=121&t=510435

and one more I found:


Here is my load:
22.0gr 1680
CCI 400
100gr AMAX
OAL 2.253

Velocity average
2,622

**************
interesting round. I have a 6.8SPC and have always liked it and it's definitely a superior round to 5.56 especially if you consider any hunting, but the different mag and bolt have really held it back from consideration for many people...

 

[hawk-eye]

here's a few that I found:

http://www.loaddata.com/members/search_detail.cfm?MetallicID=7386

some good info here as well as SSK reloading data:

http://www.ar15.com/archive/topic.html?b=3&f=121&t=510435

and one more I found:


Here is my load:
22.0gr 1680
CCI 400
100gr AMAX
OAL 2.253

Velocity average
2,622

**************
interesting round. I have a 6.8SPC and have always liked it and it's definitely a superior round to 5.56 especially if you consider any hunting, but the different mag and bolt have really held it back from consideration for many people...

nice