Hey guys, just had a chance in between morning and evening deer hunts to shoot my new Shiloh Sharps (Farmingdale). Still waiting on some tools to come in for brass conditioning, so I'm just using cut and reformed remington 45-70 brass. I'm shooting an RCBS 40-300-CAS (sized .408) bullet over 47 grains of Swiss 1.5F, and I'm guessing there is some resizing going on at the base of the bullet because I haven't reamed them yet, I pulled one and measure about .406 or so.
When shooting, I can't shoot more than about 2 round before they won't chamber any longer. I noticed there is some lead shavings around the case mouth area. Can you guys think of any issues that would cause this? Any help would be great! If it matters, I'm seating the bullets so that they are just off the lands.
Thanks in advance!