I didn't buy it from Brockman--but he did have it and it fed for him ok with different ammo---I'll try the spring and maybe a little rail polishing and see what happens--if I can't get it then it will go to Brockman along with the A-Square ammo to see what can be done---it's definitely much better, as I can get them all to feed, but some take a double stroke to do so--chris