In some ways they are a law unto themselves compared to say the commercial J4. Core integrity is a big factor especially with a bit faster twist like the 1-9' Using something with 1/2 - 3/4% antimony to add a small measure of ridgidity will help as opposed to pure lead. AND I've pushed them to 3500+ with a 22 BR, and 3600+ When drawn down to 204 in a 20 BR. I've had rifles with rough or worn bores that wouldn't give 3000 with out breaking bullets. These powders meter very well, but far more importantly they were engineered to be temp insensitive - Something that is largely not true with other ball type powders.Over a thirty year span of shooting the RF jacketed slugs, I'd say there is no stand pat answer as to what they will take for rotational torque and velocity. The Ramshot x-terminato for those on the lighter side. Hornady Bullets 22 Caliber (224 Diameter) 55 Grain Spire Point Boat Tail with Cannelure. Anyone actually experienced decrease in accuracy when we push these bullets too fast We have all heard about this so called 3200FPS limit with bullets made from the 22LR brass I'm but looking for some actual first hand load data. Hornady Bullets 22 Caliber (224 Diameter) 55 Grain Super Explosive (SX) Spire Point Box of 100. I expect to start with bullets in the 55-65 grain range. For all of our commercial loading with cases that have roughly the case/bore ratio of the 223 we have largley switched to Ramshot TAC for bullets on the heavier end of the spectrum. Hornady Bullets 22 Caliber (224 Diameter) 55 Grain Spire Point Box of 100.
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