Review by Eder w. on 2 Oct 2025review stating Ultimate 12. 5" barrel
Awesome little barrel & it keeps getting better. I've shot 200rds so far & my groups keep shrinking. As of today this barrel is consistently printing . 75/moa with Sabre 123gr black tip ($15/box) 5 shot groups. I couldn't be happier, thank you Rainier!!!!
Review by Mikey on 1 Oct 2025review stating Another journey into short-barreled accuracy
Have several UM 12" barrels; this is the first in 6mm ARC. Again, I'm amazed at the predictability of targeting with this length of UM in both . 223 Wylde and this harder hitting caliber. Both have been consistent on 6" steel out to 500+yds using 1X8 scopes. I'd need a higher magnification (or surpression) to reliably go further and hear the targe...Read MoreRead more about Have several UM 12" barrels; this is
ts with both but the 6mmArc has the legs and power to make it worthwhile. I have an 18" 6Arc from a big name gun builder that can't keep up with this at 100 to 300 yds for consistency. Really impressed, again. Read LessRead less about Have several UM 12" barrels; this is