Will STI 2011® magazines hold any ammunition loaded longer than SAAMI spec of a specific caliber? Rachel Zorn September 18, 2017 16:07 Updated Follow Yes, but the .38 Super and 10mm versions will not accept ammo longer than 1.250″. Related articles What is STI's front sight blade width? What can I expect the trigger pull weight to be on an STI handgun? What sight cuts and heights does STI use? What is the recoil spring weight in my gun? How do I take my STI firearm apart and reassemble? Comments 0 comments Please sign in to leave a comment.