Bob,
This data is out of a PO Ackley book, no barrel length given:

45 gr
16 gr 4227, 3242
16.3 gr, 4227, 3319

50 gr
17.3 gr, 4198, 3300

55 gr
16.5 gr 4198, 3005
16,75 gr, 4198, 3063
17.1 gr, 4198. 3068
17.3 gr, 4198, 3316

I'm sure that you know to start a little low with Ackley data.

Frank

I have one built on a Cadet martini action, I haven't fired it in many years. It performed best with 2400. I'll look in my old notes for the loads.
Mike

Capacity is identical to the .22 R2 Lovell, so Lovell loads will work.  4198 was a favorite in the Lovell.   In my Lovells I tend to use Lil'Gun for middling (30Kpsi) loads and 1680 for full-house (45Kpsi).

I have recently bought a 92  Winchester re-barreled in what is inbetween a Mashburn and a regular 218 Bee. I had to make brass out of 25-20's ,  to neck down with a false shoulder , to hold brass back from stretching at the head , as when I first tried it with Win 218 factory ammo, it was leaving a bad shiny head area where it was thinning on fireforming. 
   I put on a Lee Shaver front , and Seoul Tang aperture sights and will it ever shoot well.
The bad rap given to lever guns for bad accuracy is because of limitations of buckhorn and blade sight picture. 
What a neat little cartridge it is chambered for. I think it is a Gibson Bee , with much sharper shoulder being the main "improvement " , the shoulder is not blown forward as much as a Mashburn Bee
  So far I am just loading to the relatively mild Bee data of 12.5 4227 and jacketed 40 &45 gr bullets , with good results for fire forming