A New Grendel Comes to Life in the Great White North

[Canuck Shooter]

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Here's a look at my new Grendel:

-CNC machined solid billet 7075 aluminum ATRS matched upper and lower with ambidextrous bolt release.
-18" Lilja 3 groove stainless match grade barrel 1:8 twist, polished chamber with hand fitted bolt.
-Titanium Bolt Carrier Group
-ATRS muzzle break
-Timney match trigger
-Magpul CTR stock
-Magpul Maid grip
-Vortex PST Viper scope and rings
-Magpul backup sights
-Daniel Defence low profile gas block and Omega rail

Now to take it to the range for testing ....

Anyone have any advice they want to share with a Grendel newbie on what loads to start testing with?