Tried with an inrush clamp meter and with two sub 50 bucks AC/DC current clamps for low amps for scope, to see what they could pick up on short current pulses with a spot welder.
Hantek CC-65 (20K) & ETCR007 (100k), and tried with a 1000A AC/DC clamp meter Habotest HT208D. with its inrush.... but I don't have the tools to validate if those inrush values are somewhat accurate, but HT208D was able to pick up very brief current pulse down to like 10ms.
How accurate inrush <DC values are on a sub 40buck 1000A clamp meter like below..

it certainly aint a Fluke PQ345 as exampled above, very impressive clamp meter
https://docs.rs-online.com/8278/0900766b8095f724.pdf Overall pleasantly surprised about how it performed even at thicker or stacked nickel strips. for me it was critical that I could separate the batteries from the spot welder when dealing with bottom of the barrel from China, as 10 buck delivered is chancing it.
was using old 4S lipo cells from this old CP stingray clone..
https://tinyurl.com/36rpsd2r with a around 40C rating
4S is higher than its rated 12v but it's the first old rev. that seems to have better circuitry, not sure if later revisions will tolerate 16v.
With the price in mind, impressed, does the job very well for the few times I had a use for it, it got a display where you can toggle from 1 to 99ms (1to99E) & two welding modes "aut-time delayed or manual for fx foot pedal.
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ETCR07 & CC65
55ms HT208D
20ms
If these quite cheap 1000A current clamp meters like the HT208D, with inrush peak, are able to deliver somewhat accurate numbers in DC, then it would be pretty straightforward as a tool to measure current draw on fast pulses under 100ms.