Developing a load for 6 Creedmoor. What would you do next?

[SealT5]

When firing forming brass and breaking in a barrel I will take the arbor press to the range and play with seating depth. I have never not found or been extremely close to my barrels preferred seating depth even with a generic FF Load. Then when my barrel has settled I am in the general vicinity of whee i need to be. Works for me and I will keep doing it. But I’m just an over invested hobbyist.

Joe S

 

[B S]

Liking this thread. I have a 6 CM being built right now. Going to break it in on some factory stuff first and then go from there finding powder charge. Then I’ll tighten it up with seating depths. I’ve picked up some Lapua and Hornady brass to start it with, a box of 105Berger’s and 95Bergers. Already have powder on hand and a few CCI primmers large and small BR’s

 

[Iowa Fox]

Are most of the guys shooting the 6 Creed using small primer pocket brass these days

 

[JimSC]

I have been using 37.5 gns of H4350 with a 107 SMK in my 6 CM. It gets me about 2800 FPS with a 29 inch barrel. Plenty fast for shooting out to 800 yards. Attached is a pic of the 100 yard load development group pic and a 600 yard F class match target

edit - Remington 9.5 primer. The load development was when the barrel had less than 100 rounds on it. It settled in at about c. 200 rounds

 

[SGK]

Here's a pic of a 9 shot group at 100 yards while fire-forming brass. (Load was 40.2 gr of RL 16 behind Berger 105 gr Hybrid Match.) I've now got 99 rounds down the barrel and looking forward to working more seriously on a load.

 

[SGK]

Fireforming brass at 300 yards (including sighting in) with 300 yard F class target.

 

[ebb]

My partner would start loading and add 1 or 2 tenths of a grain more powder to each case. I would shoot at the same POA and the holes in the target would get progressively higher or lower when the shots were at the same level for 3 or 4 shots that was what some people call a "node". To me it meant that the barrel was at the top or bottom of its vibration cycle. The average load of those cases would be a good place to start. Where did you shoot in south Florida Saturday???? I was on the road all day and when I got home found out PBSO only shoot one day, no Sunday shoot.