04-03-2020, 08:35 PM
So time for a update.
Been working my majic and modifiyed the mags to work with grendel handloads and still work with spc based cartridges.
Here is a pic of my 12 inch grendel sbr. Just got back from the range putting the finishing touches on the mag mods and also doing some ladder for the wildcat cartridge that shares this lower.
What I had to do is inside the mags, there is 6 this rails. 2 big ones and 4 small ones. The big rails has 1 per side up front and small rails are 2 each side in the back.
What I did was take my lil craft belt sanded that uses 1/2 wide sanding belts and sanded the small rails down to ruffly 5 thousands tall and the bigger guide rails up front it took them down till they just stopped touching the neck bullet section of a loaded round.
Once I did that it all but ended the mag swelling and handloads started working perfectly. So now they work with factory ammo and handloads plus still work just fine with my apc based wildcat round I'm working with.
I got my 12 inch barrel from BFT bout 2 weeks ago and as of today I'm at almost 3000 rounds down pipe.
And yes it's as badass as it looks, nothing like dumping 29 rounds of wolf fmj from a polymer mag on a steel man target at 200 like it's stupid easy.
One of these days I'm going to get it on film, just for the haters
Been working my majic and modifiyed the mags to work with grendel handloads and still work with spc based cartridges.
Here is a pic of my 12 inch grendel sbr. Just got back from the range putting the finishing touches on the mag mods and also doing some ladder for the wildcat cartridge that shares this lower.
What I had to do is inside the mags, there is 6 this rails. 2 big ones and 4 small ones. The big rails has 1 per side up front and small rails are 2 each side in the back.
What I did was take my lil craft belt sanded that uses 1/2 wide sanding belts and sanded the small rails down to ruffly 5 thousands tall and the bigger guide rails up front it took them down till they just stopped touching the neck bullet section of a loaded round.
Once I did that it all but ended the mag swelling and handloads started working perfectly. So now they work with factory ammo and handloads plus still work just fine with my apc based wildcat round I'm working with.
I got my 12 inch barrel from BFT bout 2 weeks ago and as of today I'm at almost 3000 rounds down pipe.
And yes it's as badass as it looks, nothing like dumping 29 rounds of wolf fmj from a polymer mag on a steel man target at 200 like it's stupid easy.
One of these days I'm going to get it on film, just for the haters