“US artillery is, generally speaking, out-ranged by Russian artillery.”
US Paladin self-propelled 155mm howitzers with the last generation rounds reached out with pin-point accuracy to ~40km but more commonly ~30km.
The Extended Range Cannon Artillery Program (ECRA) in concert with the Paladin Integrated Management system is in active deployment and can reliably reach out and touch someone with pin-point accuracy at 70km. Testing has pushed that envelope out to 85km in ideal conditions.
The old Excalibur anti-tank rounds could kill any tank model at 25km to 30km. The new Merlin rounds fire ballistically and use a solid rocket in their descent stage to penetrate armor over 1m thick or steel reinforced concrete over 8m thick. These are the rounds that can reach out and kill tanks and armor at 70km.
US Paladin self-propelled 155mm howitzers with the last generation rounds reached out with pin-point accuracy to ~40km but more commonly ~30km.
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If you look at what I wrote you’d see I gave the ranges in MILES not kilometers. 40km with special rounds is 24 MILES. Russian modern tubes also posses pin-point accuracy. Especially in conjunction with each battery’s Orlan-10.
US:
Towed M-777: Effective firing range: 14.9 MILES; ERFB: 18.6 MILES base bleed; M795: 17.8- 23 MILES Excalibur: 24 MILES (less than Orc)
Orc:
Towed 2A36 Giatsint-B, Effective firing range (OFS): 19 MILES; (OFARS) 25 MILES (greater than US)
Self-propelled 2S7 Pion or Malka, 203mm heavy artillery: Effective firing range 23.3 MILES to 34.5 MILES (greater than US)
Self-propelled 2S35 Koalitsiya-SV, 152.4mm or 155mm, Effective firing range 24.8 MILES- 49.7 MILES (16 rnds min) (greater than US)
These Orc tubes are in theater and the M-109M is NOT.