Just got back from South Dakota and I'm quite happy with the 33XC and pretty impressed with the 375 CT in the HTI. I managed hits out to 2500 with the 33XC in my SRS and my buddy made it to 2600 with my rifle. I was all around the 2700yd target but with the wind changing by the second I couldn't quite get it there. With the same rifle and scope I got out to 2000 with my 7.5 X 55 Swiss barrel in the SRS and not too many rounds to get there. Shooting 308 175gr Tipped Sierra Matchkings at 2880 in the 27" barrel. I was quite pleased and could have gone further if the Charlie Tarac my buddy had would have locked on to my covert handguard. I was one groove short of the lock so no go. Scope was topped out at about 2050 yds with that round. Only got out to 1500yds with the 6.5X47 because we couldn't see the misses in the uncharacteristic green grass. Normally its a bit dustier and drier out there but like much of the US they've had lots of rain and the grass is tall. I think the 6.5 would go a lot further.
Overall I'm really happy and will work on the load development a bit more. Not happy with reloader 33. Its dirty, more temp sensitive than I'd like and the change from lot to lot was more than I've seen in other powders I've used. Looking for some H50BMG, and VV N570 like everyone else. I have a little over a year this time to work things out instead of 2 months. Should be able to get it done. The 265 gr Cutting Edge Lazers were perfect for the task and to my surprise the Strelok Pro phone app worked really well for all 3 cals I shot. 6.5X47, 7.5X55 Swiss and 33XC. Never got a chance to run the 338LM so I've got a couple hundred rounds I can shoot elsewhere.
My buddy made it to 2 miles (3520 yds) with his HTI in 375 Cheytac running the 36" barrel I made up from a Bartlein blank and 400gr Cutting edge Lazers. Very impressive to see rifles shooting that far and watching target indicator lights flashing through a 60 power scope. Love those flashers.....
My opinion based on watching both cals shooting side by side over the last week is that the 33XC is great for those who want to work their way into the ELR sport without shelling out a mint. If you have a 338LM based action its possible to do up a barrel for the XC. You'll likely be stuck single feeding but quite a few do that anyway to keep from dinging bullets and shaking powder around. On the other hand being able to toss the 400gr class bullets at over 3000fps will gain a lot more range for the same scope settings and allow you to go much further out. If that is your aim than the 375 CT is a great choice. I'm not sure what to think about the 37XC yet but I'm thinking I might need a barrel for that one too just to check it out. I can share dies and maybe use some of my 33 brass for startups. Not sure it will get the range advantage the Cheytac has as there just isn't the powder space. It should make it out to 3000 pretty easily though. I had enough left in the scope to go to just over 3000yds with the 33XC using the Nightforce 5-25 ATACR and a 70MOA mount from Defense Solutions. The mount gave me just over 120moa of up while still allowing a 100yd zero with every cal I shoot in the Desert tactical SRS.
https://defensesolutionsllc.com/
Frank