Over the years I have been collecting 22 WMR brass and throwing it into storage in clear plastic nut boxes from nuts we buy at Sams/Costco. Conventional wisdom says a .243 jacket; or .25/6.5 is the most that can be expected for jackets from 22 WMR. This week I picked up some more 22WMR brass at the range. It had been a few years since I had attempted to make 308 Jackets from this source (unsuccessfully); but decided to give it another try. This last effort resulted in successfully making jackets and 147/150 grain .308 bullets out of 22WMR brass. I have loaded some .308 Winchester with these swaged bullets and will attempt to test them over the next two weeks (We have friends visiting from Florida, so depends on changing plans). May discover that the jackets are too thin, and see bullet failure in this test; but we will see.