Reloading For An AR-10 In 6.5mm Creedmoor LMT MWS

[Fire4EffectCA]

I have the following components I would like to use to load for my LMT MWS with a 20” 6.5mm Creedmoor barrel. The LMT MWS is stock except for a BRT EZTUNE gas tube.

• Hornady 6.5mm 140 gr EDL Match bullets with Hodgdon H4350.
• Hornady 6.5mm 147 gr EDL Match bullets with Hodgdon H4350.

https://www.snipershide.com/shooting/threads/lmt-mws-brt-eztune-gas-tube.7032995/

All of the published reloading data for the Hornady 6.5mm 140 gr EDL Match bullets with Hodgdon H4350 powder were tested in bolt action rifles.

• Hornady Reloading Data: Max load 41.5 gr.
• Hodgdon Reloading Data: Max load 40.0 gr

All of the published reloading data for the Hornady 6.5mm 147 gr EDL Match bullets with Hodgdon H4350 powder were tested in bolt action rifles.

• Hornady Reloading Data: Max load 40.3 gr.
• Hodgdon Reloading Data: Max load 41.8 gr

I am assuming these numbers are safe in bolt guns, but may not be in the AR10 platform.

Can anyone recommend a good starting point and not to hot max for these components in an AR-10?

Thanks.

 

[mgoodrich]

There is a 308 AR reloading sticky that you would probably want to take a look at and see what has been posted there. Comparing this data with the bolt section would give you an idea on how much to back off.

I used this and sierra's reloading manual for the AR15 as a reference, for when I started to reload my 243 AR. The load I used with the particular bullet and powder turned out to be ~ 3.5 gr down from the max load from the bolt gun.

Your results may vary.