>>2978269
Properly crimped ring terminals are definitely the best. I have some 30A connections through soldered connectors similar to your pic and they don't have any issues, but maybe very long term vibrations could fuck them up.

>>2978269
Look into Dinse connectors for welding leads. Way too big for your 10awg wire, but maybe they make something smaller?

A Deans connector for R/C stuff is apparently rated for 60 amps continuous and 100 amps intermittent. Maybe look into some other R/C stuff and see what other style of connectors they use.

In my experience the Anderson connectors are pretty solid and rugged.

What is your exact application?

>>2978270
XT60s and XT90s are popular but they have a dangerous design given how close + and - are located on the wire side. A single drop of water is enough to cause a short circuit. I would not use them outdoors.

>>2978271
Bigger anderson connectors are better but small powerpole ones are finicky. Contact area is small and needs perfect crimps.

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>>2978269
Why not use something like collet for drill bits. Lots of surface and tight.

>>2978269
Probably not. Most if not all directives/laws/codes for high amp stuff require that the connectors are keyed so that you can’t accidentally reverse polarity.

The only connector I can think of that comes close to bullet is the Amphenol industrial for EV charging, Chinese alternative is called zc6 connector I believe but I don’t think they make female connectors, only sockets

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lotsa commercially made shit for welder applications
https://www.profax-lenco.com/wp-content/uploads/2023/05/Profax_Catalog_2324.pdf
picel is the end for tig power cables rated at 150A continuous when gas cooled. standard 3/8 fine thread compatible with brass flare tube fittings to roll your own power block terminal

>>2978269
Does it have to be a bullet connector? Molex makes Mini-Fit Sr. and Perma-seal connectors in 10-12AWG that are rated for 50A/600V.

>>2978269
> I try to avoid soldering because this is a high movement application i need them for and solder makes wire stiff and brittle around the joint
This is a nth-degree-debunked internet myth.
Crimped connections… at the point of the crimp are a failure point bigger than soldered connections, with the added scarification that the compression ring makes due to the notch sensitivity of the wire. Anybody working on these connectors over the years sees this.
Solder actually helps reduce failures over nicked wires. Whatever you do, don’t nick the wires.
Use heat shink. If you are worried about it, use 3 layers of heatshrink, the first one extending the farthest out from the connection, snd gradually getting smaller closer to the connection point to spread out the stress in both crimped and soldered connections.

>>2978272
You can take the pins out of an XT90 (melt them out) and heat shrink them.

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Anderson PowerPole go up to 45A. they're stackable and hermaphroditic. very popular in the ham radio world. Anderson make some other connectors that are even higher current

Is a threaded connection a deal breaker? If you wan to get really spendy I would suggest Amphenol Mil-spec, they've got high current connectors in 2 pole up to 150A iirc, you can get them for crimp or solder (crimp tool required) There's even versions with a quarter-turn locking ring instead of the fine thread they usually have.

>>2978269
powersafe powerlock
goes up to 800 amp
yes they crimp