in recent years we've had to buy whatever primers we can find, so this thread might help others beside myself, especially if experimenting with lighter main (or hammer) springs in double-action revolvers and using a different brand of primers. The question is, what brand(s) of primers has been recognized as being the hardest to ignite and might give more light primer strikes, and which brand(s) are usually easiest to ignite and might work well in revolvers with lighter hammer or main springs? Also, what spring weight in the Redhawk seems to work for all primers in double-action?