"progressive" powders and tight patterns

[Big D]

Why does Nice Shot increase pressure so much? Is it denser than lead, so that it is heavier for a given volume?

[OH Osthaus]

Originally Posted by John Dallas

Why does Nice Shot increase pressure so much? Is it denser than lead, so that it is heavier for a given volume?

i actually do not know- that is the figure that seems to be accepted

but the Nice shot site only says ""Nice Shot" has a slightly higher chamber pressure than an equal lead load."


i wonder if the figure came from here

http://randywakeman.com/Nice_Shot_Re..._Pressures.htm

"Nice Shot, at 14-16 Brinell, is no harder than 5% and 6% antimony lead, or the best “magnum” shot. Hodgdon Powder Company evaluated Nice Shot, and suggested that a comfortable area to load in would be subtracting 1500 PSI from their published lead data, although the average difference in pressure was less."

and

"High-antimony lead runs approx. 11.1 g/cc density. Nice Shot runs about 10.3 g/cc. While lead reloading data is by actual weight, proper shotshell assembly is by dimension. Using a lead charge bar for Nice Shot automatically reduces payload by about 7%, so no pressure issues are plausible. "

[Double Lab]

Rick, if you can find it, 4756 duplicates the old 3 1/4- 1 1/4 Federal live pigeon load.

[OH Osthaus]

Originally Posted by Daryl Corona

Rick, if you can find it, 4756 duplicates the old 3 1/4- 1 1/4 Federal live pigeon load.

oh - I can find it its on the shelf behind the 7625

as a waterfowl load- i am concerned about its reputation for poor cold weather performance

[Double Lab]

as a waterfowl load- i am concerned about its reputation for poor cold weather performance

I used it for years in some cold wet weather and it performed as expected. I'd have to look up my load data but if memory serves me right I used the Federal 209/209A which is a hotter primer and the RXP12 PP29928 wad which I have an ample supply of if you are interested.

[StubTwist]

Did a little research on the interweb what I could find with 572... very little out there by the way.....

I guess 572 was developed as a replacement for discontinued IMR 4756. I really liked 4756 and I had no issues with it.

Last time I was at a gun shop in NH they had it on the shelf... probably go and pick up a bottle next time I'm there.