Bill Calfee
Gun Fool
First five rounds, movie
CYA friends:
Had threatening weather yesterday afternoon as I started to test this new Mullerworks, corrugated 8.........
My original intent was to start the camera and sight the scope in, then shoot a 5 shot group...........good or bad, either way you would have seen the movie............
Anyway, I held in the center of the target and fired the first round, then a second round return to battery, then moved the cross hairs down and right, to the two shots, then went ahead and fired the next three RTB...........
I had fired two rounds in my bucket to check the differential between my firing pin resting on its mechanical stop and it resting in the case head....
By the way, I have not run a single 10 round penetration test yet..........
Actually, I've not even blueprinted the ignition yet.............
I snapped on a fired case from another chamber and my differential, with the factory firing pin spring and spacer, was something like .024"....way too much.....
So I knew I wouldn't have any ignition.............( the factory pin tip is wide and hangs out over the edge of the rim, so there is no way the small factory spring can drive this pin tip shape, even with the spacer)
By the way, I'm glad the pin tip hangs out over the rim as this will allow me to shape it like I want............
Anyway, I removed the factory spring and spacer and installed a full length Pepper spring...........
Even with the Pepper spring I still had a differential of .016"...............which is still too much.......(with the pin protrusion of this action I want something between .008" - .012" differential)
But, even with me not blueprinting the pin tip yet, I knew with the Pepper spring I would have some degree of uniform ignition.
_________________________________
Another thing; I just slipped my slave RVA on, no adjustments of any kind.........it is weighted just the same as a HH/MD......
____________________________
So, here are the first five rounds out of this new Dan Muller, corrugated 8, save for the two in my bucket....
Oh, one other thing............
After I fired the two rounds in my bucket, I pushed a slug through the bore and left the bore in that state.........no patches or solvent....
Tomorrow I'm going to blueprint the ignition, then hopefully, weather permitting, test more.......
Simply amazing...............
Your friend, Bill Calfee
CYA friends:
Had threatening weather yesterday afternoon as I started to test this new Mullerworks, corrugated 8.........
My original intent was to start the camera and sight the scope in, then shoot a 5 shot group...........good or bad, either way you would have seen the movie............
Anyway, I held in the center of the target and fired the first round, then a second round return to battery, then moved the cross hairs down and right, to the two shots, then went ahead and fired the next three RTB...........
I had fired two rounds in my bucket to check the differential between my firing pin resting on its mechanical stop and it resting in the case head....
By the way, I have not run a single 10 round penetration test yet..........
Actually, I've not even blueprinted the ignition yet.............
I snapped on a fired case from another chamber and my differential, with the factory firing pin spring and spacer, was something like .024"....way too much.....
So I knew I wouldn't have any ignition.............( the factory pin tip is wide and hangs out over the edge of the rim, so there is no way the small factory spring can drive this pin tip shape, even with the spacer)
By the way, I'm glad the pin tip hangs out over the rim as this will allow me to shape it like I want............
Anyway, I removed the factory spring and spacer and installed a full length Pepper spring...........
Even with the Pepper spring I still had a differential of .016"...............which is still too much.......(with the pin protrusion of this action I want something between .008" - .012" differential)
But, even with me not blueprinting the pin tip yet, I knew with the Pepper spring I would have some degree of uniform ignition.
_________________________________
Another thing; I just slipped my slave RVA on, no adjustments of any kind.........it is weighted just the same as a HH/MD......
____________________________
So, here are the first five rounds out of this new Dan Muller, corrugated 8, save for the two in my bucket....
Oh, one other thing............
After I fired the two rounds in my bucket, I pushed a slug through the bore and left the bore in that state.........no patches or solvent....
Tomorrow I'm going to blueprint the ignition, then hopefully, weather permitting, test more.......
Simply amazing...............
Your friend, Bill Calfee