Definitely a replacement drum. You can send it to Deer Creek and they will install the correct type drum.
If the hammer is original, it is older model. Sometime in the early 80's they put a V-groove in the tip so the cap would fragment and fall out, but I believe those were Spanish locks. I am not 100 percent sure. The US made ones had a solid cup, and sometimes 2 or 3 caps would remain stuck in there until you could not get the rifle to fire. I always used my patch knife to pry them out when reloading.
If the hammer is original, it is older model. Sometime in the early 80's they put a V-groove in the tip so the cap would fragment and fall out, but I believe those were Spanish locks. I am not 100 percent sure. The US made ones had a solid cup, and sometimes 2 or 3 caps would remain stuck in there until you could not get the rifle to fire. I always used my patch knife to pry them out when reloading.
