6 br/dasher in a rpr

[Forward543]

Out of curiosity i stuffed some 6br rounds in the cheap magpul sr25 mag and fed them into my 6creed rpr. They cycled well without any noticable issue. Has anyone else ran these short cases in a rpr with these mags? Thinking of making it into a .22 br.

 

[supratt96]

I did it with 6 Dasher rounds and it seemed to work pretty well. So, I had PVA spin me up a barrel for it. In actual firing conditions however, the rounds would not feed reliably. But there turned out to be an easy fix. PVA also makes a magazine conversion kit that is inexpensive and very simple to install. The rifle now feeds reliably and is a laser to boot.

The only issue (if you want to call it that) is that due to the sharp 40 degree shoulder on the Dasher case, the bolt sometimes catches a little on the next round when you eject the fired case. Not enough to cause any problem from a functionality point of view, but it does make the bolt cycling a little less smooth than it might otherwise be. Cycling the bolt firmly minimizes this.

Since 6 BR cases use a 30 degree shoulder, this may not be an issue at all. The magazine conversion kit works equally well with 6br.

 

[Forward543]

I did it with 6 Dasher rounds and it seemed to work pretty well. So, I had PVA spin me up a barrel for it. In actual firing conditions however, the rounds would not feed reliably. But there turned out to be an easy fix. PVA also makes a magazine conversion kit that is inexpensive and very simple to install. The rifle now feeds reliably and is a laser to boot.

The only issue (if you want to call it that) is that due to the sharp 40 degree shoulder on the Dasher case, the bolt sometimes catches a little on the next round when you eject the fired case. Not enough to cause any problem from a functionality point of view, but it does make the bolt cycling a little less smooth than it might otherwise be. Cycling the bolt firmly minimizes this.

Since 6 BR cases use a 30 degree shoulder, this may not be an issue at all. The magazine conversion kit works equally well with 6br.

Did you use the magpul ai mags or the magpul lr 308 mags?

 

[supratt96]

Did you use the magpul ai mags or the magpul lr 308 mags?

I don't remember. But, I found that steel AI single stack mags work best and that's what I use now.