As long as the powder charge has 'some' compression, there will be no ringing. I've used card wads, dona-cona, dacron and kapok - all producing some compression of the powder and never a problem.
9.3- there is nothing wrong with your load - as it provides some compression. Some powders don't need compression, but with the you site, you had leading problems - this is waht wads are for. Wads are only necessary to eliminate problemsw ith accuracy and ignition.
Even black powder cases can be used with long wad columns- as my bro did in his .45 3-1/4" Sharps. 100gr. 2F, about 8, 1/10" wads then a bullet = excellent accuracy and less recoil than a full 122gr. charge of the same powder. Too, when shooting the paper patched 420gr. bullets, he used the same system of loading, with excellent results.
Always having a compressed load when using wads = entirely satisfactory results as to safety of the gun.