For my 41's I have used H-110, 296, 2400, AA-5,7,& 9, Blue Dot, Red Dot, Unique, and probably a few more that I can't think of off the top of my head.
I have for the most part used Winchester LP primers for around 85% of all the loads and CCI LP for the rest. Well maybe a Remington thrown in somewhere along the line.
My main stay load for the past 20'ish years has been the Remington 200gr SJHP, loaded over 20.5grs of 296, yes the REAL 296 before it became the same as H-110, and lit with the Win WLP.
I haven't ever had any issues with any ignition even when the charges were compressed. I have made sure that I DO have great neck tension and a decent crimp. The crimp however is only there to prevent movement, the case tension will do more for consistent velocities and a sure light off than anything.
That said, DO NOT REDUCE the charges of 296/H110 more than 3% as mentioned by the manufacturer.
Mike / TX