I noticed a lot of concern about the recoil with maximum loads of 777. I agree the sharp recoil from the 777 loads make it difficult to shoot the heavier loads. I mentioned earlier that I shoot Black Mag'3 and I can verify that maximum velocity can be had using BM3 with considerably less felt recoil than the same volume of 777 which will produce less velocity. 777 has a very rapid rise rate of the pressure curve which in most cases is not necessary or even desired for muzzleloading bullet performance. Black Mag'3 is also a lot less corrosive than 777. It is non-corrosive to steel and slightly corrosive to brass. I know that it is still difficult to find in a lot of areas (unfortunately my area is one of the ones that it does not exist in) but when you can get some to try you will be impressed as I was. BM3 works best with heavier bullets 295gr. and up. With 100gr. volume I get 2000fps out of a 300gr. bullet.