Feeding issues?

[welder179]

I have a S&W M&P15 Sport II, and it ran flawlessly no mater what I put through it .223 or 5.56. Now I recently put on a new IBI barrel in .223 Wylde and a JP adjustable gas block, and had no issues when I went to test it while using any of the .223 I had. however I recently bought some 5.56 for the rifle and now I'm getting feeding jams at least once a mag. So I'm looking for some input as to what may be the possible causes.

 

[Meroh]

I have a S&W M&P15 Sport II, and it ran flawlessly no mater what I put through it .223 or 5.56. Now I recently put on a new IBI barrel in .223 Wylde and a JP adjustable gas block, and had no issues when I went to test it while using any of the .223 I had. however I recently bought some 5.56 for the rifle and now I'm getting feeding jams at least once a mag. So I'm looking for some input as to what may be the possible causes.

I have no experience, but have read about similar problems; you are not alone; do the following Google search: .223 Wylde feeding issues

 

[maple_leaf_eh]

I have a S&W M&P15 Sport II, and it ran flawlessly no mater what I put through it .223 or 5.56. Now I recently put on a new IBI barrel in .223 Wylde and a JP adjustable gas block, and had no issues when I went to test it while using any of the .223 I had. however I recently bought some 5.56 for the rifle and now I'm getting feeding jams at least once a mag. So I'm looking for some input as to what may be the possible causes.

Similar experience with a Wilde chamber. (Which is odd, because I know Bill Wilde personally and don't want to slag the man.) I need to eliminate all the other potential causes including stiff magazine springs, soft return springs, and rough cycling due to limited lube.

 

[welder179]

I have no experience, but have read about similar problems; you are not alone; do the following Google search: .223 Wylde feeding issues

Googled it and it's seems like the common answer to the "problem" is to just simply stop using 5.56 ammo. This is really disappointing to me since I had a gun that cycled flawlessly and now I have something that is picky for a relatively mild increase in accuracy according to my testing. Unfortunately I ended up scrapping the old barrel so I can't even switch back.

 

[DT741]

Had the same problemwith a 223wylde chambered barrel, got it rechambered in 5.56, everything went away.

Lesson learnt: stick to real caliber chambering.