What thread do the dies have? If they're 1", CH may be able to make an adaptor for your press. If they're 1 1/4" x 12, remove the adaptor bushing in the press.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Winchester 69</div><div class="ubbcode-body">What thread do the dies have? </div></div>
does not really matter as the Lee press takes both 7/8 and 1 1/4 so it will work