When comparing Ace 250 vs Bounty Hunter Pioneer 505, the Slant community recommends Ace 250 for most people. In the question“What are the best metal detectors for beginners?” Ace 250 is ranked 6th while Bounty Hunter Pioneer 505 is ranked 10th. The most important reason people chose Ace 250 is:
Ace 250 only weighs 2.7 pounds.
Specs
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Pros
Pro Very light
Ace 250 only weighs 2.7 pounds.
Pro Detects up to 8" down
Pro Free-twisting sensitivity and discrimination knobs
Instead of having predetermined settings, the Pioneer 505 lets users adjust the knobs depending on soil conditions and desired target.
Pro Excellent object identification
The Pioneer 505 gives users an accurate estimation of what detected objects could be.
Cons
Con Questionable pinpointing mode
The pinpoint mode works for some users and doesn't work for others. It may be easier to use this machine with an external pinpointer instead of using the built in function.
Con Signal delay
When moving quickly, there is lag between when the detection occurs and when the Ace 250 notifies the user.
Con Inaccurate depth readings
All of the readings given by this device are accurate except for depth.
Con Not great with wet sand
The Pioneer 505 is fine with dry sand, but wet sand yields a lot of false positives.