Cool. I am one of the "Friends" that has been shooting out there. I have shared the video here of my first time there, but will post again below.

As far as bullets go, I am not sure whose drag model to believe. The 180 Berger Hybrids that my rifle was custom chambered for seemed to fall apart past 1600 yards. The 180 ELD-M that I had never shot before that day seemed to out-do the hybrids, at least in the BC category. I was skeptical for sure, but the proof is there.

My rifle is a custom, built by Paul McCoy. It wears a 28" Bartelin MTU profile barrel with 1-8 twist. The bbl was chambered for 7 SAUM and was built around the 180 Hybrid bullet seated just to the shoulder. My normal "easy shooting" loads consist of Norma 300 SAUM brass necked to 7mm, BR2 primer, and 63.0 grains of H-1000 for 3000fps. I have run the same bullet to 3200 with no pressure signs, but keep it as low as possible because barrel life.

The first time I went out to Triple C I had brought my normal loads as well as the unknown, "loaded the night before with a new to me powder and no load development". I initially just wanted to see what they would do on paper at 100 and get some chrono numbers. My very first shot with them was at 1000 yards. First round hit. On the below video. Subsequently, the 2-6th rounds were at 1800 yards with a 5th round hit.

By blind luck, these loads loaded with 65.5 grains of Retumbo and the 180 ELD-M duplicated my H-1000 loads with Berger Hybrids. 3000 Fps on the money. In order to get out to a mile, I used Strelock with all the same environmentals as my Hybrids, just plugged in a G1 of .801. It called for 15.5 Mils elevation. I ended up at 15.6 when the steel rang.

We went back out there week before last and shot it again. The weather was 20 degrees cooler, and my dope was 16.2 to make the same shot with the same bullet. My friend was shooting his straight .284 with the same bullet at 2960, just on the heels of my 7 SAUM with 8 grains less powder. He didnt attempt 1800, but did smack steel at 1400 and 1500 before he ran out of ammo.

I did have the pleasure of shooting next to George Banke and his suppressed 338 Lapua. He even nominated me his spotter while we were there. lol He called my hits at 1800, although I did not attempt 1900 that day.

This is the Video from the first trip. You can skip to 5 minute mark if you arent interested in seeing the drone footage of the range.

What bullet?
What charge?
What MV?

And not everybody has your budget, you crazy Guinea.