In the August 2007 edition of Handloader Magazine, they decided to hunt Africa with the 45/70......they have stepped loads up to the "below 43,500 CUP" level. These are more in line with loads tested/used by Buffalo Bore, Mitchell/MT Chambers, etc.....These are loads that most folks shunned when they were bandied about on this site, now that they have been printed in a rag, there may be new believers....example: 430 gr Hardcast FN....55gr. of AA2015....2029fps. They fall short in their testing as many of the heavyweights can be loaded to those pressure levels as well. The Chambers 480gr. WFN GC was driven to 1900+ fps with healthy doses of AA2015 and came in under the 43.5K level as tested by Accurate Arms/Mitchell Ballistics. Anyhow when all was said and done the mag/rag decided that the 45/70 was magic on the dark continent.