Sorry, don't know anything of it. The only ones I have followed and researched are the 26,28 and 30. I have as I stated the 26 in a Fierce and the 28 discussed here...plan to build a 30..just figuring out what to use..

On another note, I just got done with elk season here and have to say, in all the elk I have shot or seen shot, nothing quite hits an elk like my 300RUM or 30 calibers in general...you hit them and they are done, period. I have used or seen calibers used anywhere from 243, 264 W mag, 270, 7RUM, 308 and 300RUM. Have probably seen over 100 head taken in the past ..in my experience, the 30 calibers just seems to really slap them when used with a proper bullet ..so, think if I do build a 30 it will be used on elk and will be used accordingly. Range doesn't seem to matter whether its 100 yards or 500, down they go, again, good bullets and shot placement are needed..My wife's little Kimber in 308 has dropped 3 elk 3 years in a row..360, 345 and 300 yards...one shot..boom..done..

It was never more clear to me than this year vs last--last year I used another bullet in my 7RUM this year Swifts in my 300RUM...the difference was undeniable...

Ripp