I kinda figured you hadn't looked at the patches, many don't and I promise, until they look like you can relube and shoot again your groups won't be worth a dang...
Now, I would ditch the Bore Butter, tried it and my patches started burning through...You'd be better served with something like Crisco, SnoSeal or a mix I found over at
www.muzzleloadingforum.comthat consists of bees wax, castor oil and Murphy's Oil soap...The beauty of making your own is that you can make it work for the temps that you anticipate...
Also...I don't care for prelubed patches...I have had problems with them burning through as well...Some think that patches have a shelf life once lubed and this can break down the fibers, reducing a patches durability...
We are asking that patch to do quite a bit...We are basically trying to burn it and if we are successful the group suffers...This is also a good reason why we should keep powder charges as low as possible and still get the job done...
Try this...Go to WalMart and buy a yard of the red or blue striped cotton pillow ticking...It's about .018 thick so it's a little more durable than the thinner stuff and will hold more lube...If you have SnoSeal in your area, pick some up...This stuff is made of bees wax and a softner...It's made to water proof boots...I used this for about 20 years and it does a good job, until it hits 85-90 outside and then it gets a bit runny if left in the sun...
Wash your pillow ticking a time or two and throw it in the dryer...This gets the starch out and helps shrink and compress the material...Cut a few stripes off the ticking, about an inch and a half wide...
Grab a putty knife and a few newspapers and the SnoSeal and head to the kitchen...Lay the pillow ticking stripes on the newspaper to keep from making a mess and with the putty knife, spread the SnoSeal on the ticking, covering both sides...Then put on a paper plate, or double paper towel, roll up and microwave for about 15-20 seconds...This helps the lube penetrate the cotton and the excess lube will flow out...
Now, when you load, put your powder charge down the barrel and with your short started, start the ball and leave it flush with the end of the barrel...Take a sharp knife or a pair of siccors and cut the patching and ram the ball home...
You can cut square or round patches later or either make a loading block and have the patched balls ready to go when you hunt...
With this way, you know that you have fresh lube and patching...From one season to the next, you can make a fresh batch of patches...
Finally...Lay a tarp down about 10 steps from where you are shooting and collect the patches...
Look for cuts near the edges, this is caused by rough rifling or a burr...
Look to see if they are burned, this is from a poor ball/patch fit to bore, too thin a patch, too heavy powder charge, etc...It can be stopped with an over the powder wad/hornets nesting or another patch rammed down but if the ball and patch fit the rifle properly then this should not be necessary until you start to get up to 100-120grs of powder...
On powder charges in a .50 caliber...70-85 grains is plenty...Frankly, unless you are shooting a custom rifle with a 38-44 inch long barrel, you probably aren't burning all the powder once you reach 80 grs...This is also another good reason to go to FFF, it burns faster in the shorter barrels of factory made muzzleloaders...
My thought on conicals in a traditional muzzleloader when deer is the game...Nope, I would prefer the round ball...Many will argue with all types of facts and figures...I've killed them with a .45 ball and 75grs of FFF and the ball ended up under the hide on the off side, they run about 60-75 yards with lung shots...As I said, I use 80grs FFF in my .54 and mold my own balls...Never had a problem...
Back in the 80s, my brother killed a few with a TC Hawken and Buffalo Bullets...So I have seen what they will do, but that ball flattens quickly and easily and from there it's all about penetration...