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for bear I recommend https://www.buffalobore.com/index.php?l=product_detail&p=571

This is a good choice. The recommended ammunition is the Underwood Extreme Penetrator : https://www.budsgunshop.com/product_info.php/products_id/713086946/underwood+ammo+10mm+140gr. ---------------------- Look at the video in its entirety to know why. --------- https://www.youtube.com/watch?v=WDvzul3rvTk

Hi Jonathon, the G40 is +P compatible. From the Glock FAQ - "We recommend using ammunition that is manufactured and meets SAAMI or other industry standards, and while some +P ammunition meets these guidelines, +P+ usually does not. This ammunition may generate a higher pressure than standard ammunition, which could shorten the life of the parts of your firearm." Stay safe & have a great day!