I'm happy to write english but I have the english course at LPS school at Laval I started 3 weeks a go. I found, for my 38-55, the custom bullets jacketed 0,3785 inche, real, (0.379) 250 grains, from Huntington store to California but I pass via a canadian distributor because I need a licence to import this one to canada. I will try they the next week end because the shooting club's close for Eastern. The 0.375 inche bullets past through the barrel like a butherfly ball with no spin ! I dont have the spin effect for stabilisation. I never try 0.378 inche bullets. I will buy one boxe from Cast Performace at my next order. I have a lot fun with this rifle ! That weird, you know ? I'm desolate that H&R stop this model !