I have the Enfield revolver in 38-200 and have done some reloading. I was concerned that the bullet diameter of the .38 S&W was larger than .356"
In one successful try I used a .38 cal 140 gr. unsized and unlubed bullet from Penn Bullet that mic'd at .361. I used the liquid alox lube. This was a bit more accurate than the Magtech stuff. (Starline Brass, WSP primer, W231 Powder).
My near disaster occurred when I used a 148 gr hollow based wadcutter (Hornady) (which I thought would expand and fill the bore) with what I thought was a modest load of W231 (2.5 gr). The round felt "snappy" and I was shocked to see case head separation

It appears that I overdid it. Somewhere I went wrong with my logic. I have since not used that particular bullet for this caliber. Luckily, the revolver seems to have weathered this storm.
Regards, DocAitch