I have been reloading for many years and am a very recent convert to the 'Muir School of Reloading'. :idea:
Setting the bullets deep and using a Lee Factory Crimp die has had a dramatic effect in reducing the extreme spread of my .243 loads to 15 fps.

Setting the bullet deep has no adverse effect whatsoever on accuracy, so I have abandoned any thoughts of 'lands chasing'.
If I tried to get anywhere near the lands of my 1954 BSA .22 Hornet, the bullet would drop out of the case and be too long for the magazine.
The Sierra 40 grain hollow point #1385 can definitely be loaded to factory standard overall length in the .22 Hornet. I have loaded them in RWS and Winchester cases with no problem.
I have done quite a lot of testing recently and am convinced that Muir's method works. Seat deep and crimp.