Hi, I finally found some WWI .45 cal fiber brushes to complete my 1912 squad kit. The 9 brushes I bought are different from the 4 I had. The "new" ones have about 2" of bristle while the "old" ones only have 1 3/8". What has been noted about these? In trying to research this it appears that repos may have been made at some point too. Any help is appreciated. Thanks!