6.5cm load development: Take 2.

[Swampcrawler65]

So a couple guys on my last load development thread suggested that my craptastic shooting played a big part in the results. And I agreed!

So I tried again. 5 round groups, skipped the round robin business and just shot the groups. I think the results are a bit more consistent this time.

140SMK, Hornady cases, fed match primers, .002 shoulder bump and bullets seated .02 from lands.









Average Velocity:
41.3-2729
41.5-2743
41.7-2759
41.9-2761
42.1-2762
42.3-2851
42.5-2827
42.7-2852
42.9-2853

I’m going to go with 41.9 and start playing with seating depth.

 

[spife7980]

I’m going to go with 41.9 and start playing with seating depth.

That’s exactly what I would do myself

 

[Marksman10x]

or 42.8 on the upper node

 

[Darkside-Six]

41.9 and 42.1 look pretty similar and both were the same speed. I'd start right in the middle at 42 and start playing with seating depth.

 

[padom]

42g is a pretty well known node. your in the right spot now do a seating depth test to see if you can shrink your groups.

 

[molzarella]

What powder out of curiousity?

 

[supercorndogs]

10 bucks said, H4350.

 

[Swampcrawler65]

What powder out of curiousity?

Yup 4350. Thought I said that up top but I didn’t.