STI .22 Cal. Conversion Unit for 1911 ACP with Marvel Insign
Posted: Tue Jun 22, 2010 4:59 pm
Does anyone have experience with the accuracy of the STI .22 Cal Conversion Unit?
The STI appears to be every bit of an Advantage Arms unit. I have ransom tested my Advantage Arms 1911 target unit at 50 yds. Eley Tenex was very good at about 1" groups. More mainstream ammo like Aguila SV, Eley Sport (purple) grouped about 1.5". One surprise was CCI SV which grouped terrible at 3"-4". The CCI test was repeated.
Seek out a Bob Marvel/Advantage Arms unit. They are probably the best.