West was giving from its stockpiles, but not paying to ramp up production to rebuild them. Probably neither side expected the war to last this long. Soviets had left huge stockpiles, although age and poor oversight of its stockpiles had somewhat diminished their size advantage. And the higher tech western stuff offered more ‘bang’ for each bang. But if you want to keep using new stuff you eventually have to boost production. Until the west is willing to try that comparing manufacturing potential is premature. My understanding is that Europe recently placed an order that might provide 6 months worth of shells. Putin, in addition to trying to increase his own production has been buying from Norks and Iran. You’d think the military industrial complex here would be drooling, but how much of an increase over peacetime production levels has Biden actually ordered?
Biden's depleted our oil reserve too, and isn't taking any steps to replenish it. Left us in a pretty sad state if we had to supply our military with fuel to go to war with Russia/China. It was hard enough to keep the vehicles our troops relied on in WWII. It wouldn't be any easier this time around. Every country that relies on Russia for its oil/gas, wouldn't be able to help us. And there's no guarantee that the oil-producing countries in the Middle East would provide it either.