The Delta Elite was designed when factory 10mm ammo was still (only) 200grs @1200fps. It will accommodate full-power 10 in stock configuration.
It's possible, with modern powders and measuring equipment, that you could exceed those numbers and stay within SAAMI specs, but there is no "high pressure 10mm"; max is max.
If you need more power, get a gun which shoots a more powerful cartridge.
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