Feel free to list your personal favorites with supporting info about performance and your pet loads. References to helpful threads would be nice. This is all about comparing the new hotnesses to the old bustednessnesses."
ETR-7 supposably MAXAM CSB-1 repackaged and resold by Expansion Industries for $60-$70 for a 4-lb jug- If their web site every comes back up, you can buy now, get your credit card charged immediately, and expect delivery late if you are lucky or never. Feel free to leave complaints on a phone line that was answered at least twice in 2 years.
In 9mm, 3.7 gr under a 135gr Bayou bullet delivers a consistent 134PF from a Stock 2 with no pressure signs. Temperature insensitive - +/-1% over hotter and cooler temps than you are tough enough to shoot in. Fairly clean burning. Bulky enough that double charges can be detected. Large flake powder meters well in a Dillon powder measure, benefits from a Perfect Powder Baffle. Burns best at higher loads, extreme spread increases rapidly at reduced charges.
ETR-7 is re-branded Maxam CSB-1 a bulk shotgun powder. It is readily available in bulk form, here is one place that is selling it at a decent price: http://hi-techammo.c...th-loading-data. Graf & Sons has had it in the past but does not currently show it in stock.
As much as I love this powder I think it is time to assess the new hotness. I have started testing an old standby, TiteGroup. TG is is inexpensive, currently widely available and so far color me unimpressed.
VV N320 is a good powder That I have used, but always overpriced and availability varies wildly.
WST and Win231 are on my shelf for testing, but from READING, my hopes are on the pretentiously named Nobel Sport Vectan Prima V. If that doesn't work out, I may just change suppliers (hi-techammo) and test the ETR-7 = CSB-1 claim. Availability from a sole-source supplier is a concern.