6mm Creedmoor-108 ELD-H4350

[Ryguy]

There is not a lot of data that I could find on this combination. This recipe showed .33 MOA today.

Ruger Precision Rifle
6mm Creedmoor
108 ELD-M
Lands at 2.80, seated to 2.65 OAL
41gr H4350
CCI LR
Norma 6.5 brass necked down
3020 FPS, 4.4 SD

Every other seating depth showed poor accuracy. Accuracy was good up to 41.7 grains (3080 fps) but ES and SD was best at 41. Pressure signs arrived at 42.3 grains.

 

[BigdaddyWSM]

My 26' Shilen barreled 6mm creedmoor likes 40.0 grains of H4350 .020 off lands. ( more testing seating depth soon) for a MV of 3067 and single digit SD & ES for 4 shots. Test loads of 39.9 thru 40.1 were almost identical so I picked a load in the middle so I can use my electric powder thrower & if it's off a 10th grain either way it won't matter. I always used the 105 Amax but almost out ( discontinued) and these 108 eld I believe shoot better.

 

[mensajd]

Here's Hornady's 6mm Creedmoor load data:
https://press.hornady.com/assets/site/hornady/files/load-data/6mm-creedmoor-all-data.pdf

 

[Doc68]

Ive been using 41.7gr in my criterion 26" barrel and have been seeing .2-.3 MOA from it. I seat them at your same length 2.80 is the lands for me also. 15 thousands off lands is great. I just use cci large rifle magnum primers. Im using hornandy match brass. Its 2x fired now.

 

[Doc68]

Big daddy, whats your ogive lenth to the lands on your barrel on the 108gr

 

[BigdaddyWSM]

My Ogive to lands with MY comparitor is 2.170

 

[BigdaddyWSM]

Here is 2 sets of 5 shot groups, .020 and .030 off lands using Whidden shoulder comparitor. Top hole on left group is cold/clean bore first shot.
Left has SD of 2 & ES of 4. With a 16 power scope & my old eyes I think It's time for a scope upgrade.

 

[sharpdoug]

3 shot group @100 Berger 105gr 2.170 .050 off
Bartlien 24” shoots laser beams
40.6gr H4350 2990fps

 

[BigdaddyWSM]

My newest group in 23 degree weather Christmas day. don't be " triggered" by shape of group. Ha Ha!!

 

[psinclair]

A reduced load I worked up for a bullseye shoot, last summer.

 

[psinclair]

Why only 300?

 

[BigdaddyWSM]

I will stretch it out when weather cooperates. Nice groups everyone.