Every container of Alliant Smokeless Powder is backed by a century of manufacturing experience and the most exacting quality control procedures in the industry. Chemical composition, grain shape and size, and overall density are constantly checked and tested in a ballistics lab to ensure consistency.
Reloder 22
A top-performing big game rifle powder, the Reloder 22 is ideal for use with magnum rifle loads and for loading heavy bullets in standard rifle calibers. Reloder 22 has excellent metering qualities that make it both accurate and consistent in loading. All of this makes Reloder 22 the powder of choice for 270, 7mm magnum and .300 Win Mag.Warnings from the Manufacturer:
- Do not exceed the loads displayed in the reloaders guide.
- Never mix any two powders regardless of type, brand, or source.
- Never substitute any smokeless powder for Black Powder or any Black Powder substitute.
WARNING: 
Brandon Fisher –
This is the most accurate powder in my .221 Remington 23″ barrel 1 in 10 twist 52 grain Nosler custom competition H.P. 17.9 grains Reloader 10X. I just chronographed this load and avg. fps. was 2769. A lot slower than my other loads, but I shot a 4 shot group center to center of .121. The extreme spread was 7 and S.D. was 3.4. That is by far the best I have had with any powder.
Charlie Morris –
Tightest groups with the minimum charge in the reloading manual, 1.25″ groups at 100yds in my rifle, using 55gr Hornady FMJBT and CCI primers, clean and cost effective. Just stocked up on a few more bottles.