To me the scuffs still look like they are more in one area than all around.
If you're feeding the inked up rounds in from a magazine then stop that and feed them in carefully one at a time by hand so only the chambering produces any scuffing. Otherwise you can't tell which is from what.
The one close up shot of two bullets in casings side by side appears to show that the 110 has a little crimping squeeze going on just below the case mouth. Are you crimping? If so you may be bulging the lead up from the crimp and it's causing the skirt just ahead of the mouth to swell out a little.
Do you have a good set of calipers? Or even better a micrometer? It's time to measure the bullet skirt diameters before loading and record a few then check after loading.
In the end seating deeper will fix it. But is it fixing the real problem or masking the actual problem? By all accounts you want your bullets to be seated out where there's little or no jump to the leade of the rifling. So setting them back further might not be the optimum fix. Especially if it's fixing one problem with another.
All of which is my way of saying that you might want to put a little more study time into what is going on here.
And yes, a thou and a half in metal working terms is like an inch and a half in house building terms or a quarter inch in cabinet making terms. In other words it's HUGE where it matters.
If you're feeding the inked up rounds in from a magazine then stop that and feed them in carefully one at a time by hand so only the chambering produces any scuffing. Otherwise you can't tell which is from what.
The one close up shot of two bullets in casings side by side appears to show that the 110 has a little crimping squeeze going on just below the case mouth. Are you crimping? If so you may be bulging the lead up from the crimp and it's causing the skirt just ahead of the mouth to swell out a little.
Do you have a good set of calipers? Or even better a micrometer? It's time to measure the bullet skirt diameters before loading and record a few then check after loading.
In the end seating deeper will fix it. But is it fixing the real problem or masking the actual problem? By all accounts you want your bullets to be seated out where there's little or no jump to the leade of the rifling. So setting them back further might not be the optimum fix. Especially if it's fixing one problem with another.
All of which is my way of saying that you might want to put a little more study time into what is going on here.
And yes, a thou and a half in metal working terms is like an inch and a half in house building terms or a quarter inch in cabinet making terms. In other words it's HUGE where it matters.
