new upper problems

[alorton]

Originally Posted by markpurifoy

Unknown gas port. Waiting for model1 to call to answer that.

If it is Model 1 then the gas port is most likely in the carbine position. I've only heard of one guy getting an M1S barrel with the pistol position port and he had to ask for it.

With the port further out you will most likely need a slower powder and/or a larger port as Spook suggested.

[i8asquirrel]

Spook giving you good advice I went to 4227 and 1680 at his recomendation , opened gas port to .116" and I also lightened buffer to around 1100 grains and mu rifle functions every time, Sub loads or super sonic! Good luck.

[markpurifoy]

Originally Posted by Spook

Mark, open gas port to .120 or try AA1680 powder.

ok how do i do that

[markpurifoy]

Originally Posted by i8asquirrel

Spook giving you good advice I went to 4227 and 1680 at his recomendation , opened gas port to .116" and I also lightened buffer to around 1100 grains and mu rifle functions every time, Sub loads or super sonic! Good luck.

how did you open port up and lighten up the buffer.my lower is DPMS and use it 223 upper. so will doing anything to lower mess up shooting my other upper in 223.

[markpurifoy]

Originally Posted by Spook

Mark, open gas port to .120 or try AA1680 powder.

how do i do this and what load do you use.

[Spook]

Originally Posted by markpurifoy

ok how do i do that

given the question you might ask someone to do it for you.

[i8asquirrel]

ti lighten the buffer : remove it from the lower and take the synthetic plug from the rear of the buffer, inside you will find weights and rubber spacers. take out the weights and set the buffer on your powder scale, add weights untl you get the total to +/- 1200 grains...I filled the void in the buffer with walnut shell so the weights didnt rattle. reassemble and give it a try....you should probably have a smith open the gas port. If you dont know how you can screw things nup pretty good..... good luck

[Hoser]

Originally Posted by markpurifoy

ok how do i do that

Contact a gunsmith.

[markpurifoy]

Originally Posted by Spook

given the question you might ask someone to do it for you.

I have takn the front site off. The gas port is lgr. enough. I can put the tail end of a 1,8 drill bit in gas port. That is above you .116 and check what now. I going to get some 1680power and try this see what happens.

[markpurifoy]

Originally Posted by i8asquirrel

ti lighten the buffer : remove it from the lower and take the synthetic plug from the rear of the buffer, inside you will find weights and rubber spacers. take out the weights and set the buffer on your powder scale, add weights untl you get the total to +/- 1200 grains...I filled the void in the buffer with walnut shell so the weights didnt rattle. reassemble and give it a try....you should probably have a smith open the gas port. If you dont know how you can screw things nup pretty good..... good luck

not that i didnt understand just dont want to do it wrong.Will check buffer weight.Thanks