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The Armscor 125 will function just fine as this round comprised the bulk of the testing for this pistol by Rock Island/Armscor. I also would highly recommend the Sig V-Crown for self defense : https://www.budsgunshop.com/catalog/product_info.php/cPath/656_2081_10000712/products_id/99237/SIG%20E38SU1-20%2038SUP%20125%20VCROWN20/10/

the gun will be fine with it now 1911 guns may take 500 or so rounds to "break in" and be 100% reliable I have 7 RIA 1911s and 2 of them needed "break In " time 5 were good to go out the box