Granular fillers, your experience?
- Thread starter Chris
- Start date
Ian
Notorious member
Guys, this stuff can be tested, and you should test. Section a case, repair it with a piece of clear plastic from a package, load your load, carry it around with you in your pocket for a few weeks and observe powder migration or filler compression. Done it with buffer and Dacron both to see what happens and it's helped me tweak loads.
fiver
Well-Known Member
the powder company's don't help that situation any either they just throw components together and call it good if it's under max pressure.
I spend a lot of time measuring things, and have a ton of cut off hulls sitting in a little box so I can do 'test fits' with a wad to determine it's usefulness in those hulls.
it's surprising how many have a 20 thousandths slop fit, and how few have a tight interference fit at some points in the hull.
both are a problem, but for different reasons.
I spend a lot of time measuring things, and have a ton of cut off hulls sitting in a little box so I can do 'test fits' with a wad to determine it's usefulness in those hulls.
it's surprising how many have a 20 thousandths slop fit, and how few have a tight interference fit at some points in the hull.
both are a problem, but for different reasons.
Eutectic
Active Member
And then we have static with the plastic rearing its ugly head! Then we have target hulls with tapered walls and then Gold Medal with straight...
The sixteen has wads available (AA copy) sized for a tapered hull that hasn't been made for years in the 16! I use Italian wads in 16 mostly which are snug in American made hulls with minimum migration. B&P Z2M I use most. But I have a ton of undersize wads !!!!!! AA's can be helped. I make a heated flaring tool to heat the over-powder cups which helps.... You have to seat wads careful though...
The black 16 ga Remington hulls are a little thicker wall that helps. And you can't see through them... You know out of sight, out of mind!
You get plenty of opinion here and other places; so I like to test things to know. So I've run migration tests over the chronograph. I used my 16ga Green Dot load of 16 grs. I disclaim anyone using this test procedure.!!!!! Don't do it! It takes more migration than you think to see it on the chronograph. Even 0.2 or 0.3 grs looks horrible to the eye but the chrono doesn't see it. By 5% of the charge in the cushion section you see a lot of standard deviation. Speed surges.... At 10% you are losing velocity big-time! So factory loads look bad through the wall, may have deviation, but you'll get by.
I'd still shoot paper hulled WW Mark 5 (shot wrapper) factory loads if I could get them! I still load a lot of Federal Gold Medal paper hulls in the 12 ga. I have a Pigeon Grade Winchester Model 1897 made in 1898 that has NEVER seen a paper hull! How do you know this someone may ask! I got it when paper hulls were all there was!
The sixteen has wads available (AA copy) sized for a tapered hull that hasn't been made for years in the 16! I use Italian wads in 16 mostly which are snug in American made hulls with minimum migration. B&P Z2M I use most. But I have a ton of undersize wads !!!!!! AA's can be helped. I make a heated flaring tool to heat the over-powder cups which helps.... You have to seat wads careful though...
The black 16 ga Remington hulls are a little thicker wall that helps. And you can't see through them... You know out of sight, out of mind!
You get plenty of opinion here and other places; so I like to test things to know. So I've run migration tests over the chronograph. I used my 16ga Green Dot load of 16 grs. I disclaim anyone using this test procedure.!!!!! Don't do it! It takes more migration than you think to see it on the chronograph. Even 0.2 or 0.3 grs looks horrible to the eye but the chrono doesn't see it. By 5% of the charge in the cushion section you see a lot of standard deviation. Speed surges.... At 10% you are losing velocity big-time! So factory loads look bad through the wall, may have deviation, but you'll get by.
I'd still shoot paper hulled WW Mark 5 (shot wrapper) factory loads if I could get them! I still load a lot of Federal Gold Medal paper hulls in the 12 ga. I have a Pigeon Grade Winchester Model 1897 made in 1898 that has NEVER seen a paper hull! How do you know this someone may ask! I got it when paper hulls were all there was!