Always heard;
Only change one thing at a time in load development. Welp, that ain't happening. There's several things going on simultaneously with this almost,brandy new TC 22-250 barrel/bullet workup.
Shot yesterday and it is continuing to come into it's own,on several fronts. Loaded up some more,increasing H4895 by another .5g
The LG is too easy not to use. I used it before,and after seating this time around. Sure,this mould has only dropped a few hundred out of cpl casts(yes,that new) so some of the out of roundness,"may" be that? But once past a quick visual picking up a bullet..... I seat the GC on a small 1930's C frame jewelry press with custom tooling.
Then "crimp" on a Lyman 450 with a beam style torque wrench handle only as deep as required to hit the GC. Might get about 1/2 the lowest drive band. Then spin the nose with the LG. Even before you look at the altered nose....... you can feel how the tool is reacting to the developing smoothness. VERY hard to describe and a pic is worthless..... would be like trying to describe or photograph the tactile feel of say sand,between your thumb and index. Try it once,and you have an,ah ha moment.
Then quickly roll size the bands,set bullet in prepped case,get it deadnuts perfectly centered before seating to OAL. Do a very mild "pressing" ,not really crimp(more by feel) in one of those Lee collet "crimpers".
Wipe off the case with acetone,and whilst still in hand,give the nose another light twirl with LG lubed with LLA.
Whole shebang is knocking on bugholes @100. It presently is GTG on varmint blasting accuracy wise but,it needs more juice. Going to keep adding powder until it hits a wall,back off .2-.3 grains and call it good.
If you noses are straight and round the LG is limited in scope. Where it shines is,determining that. A casual,very easy to use tactile,as well as visual roundness checker. And it does apply LLA pretty durn cleanly.
Will check back in a few more sets.