[Mossberg88]

My Remington 7400 (in 30.06) is having some cycling issues. It has a 10 rd. box magazine and after I fire it has trouble loading the next round, and then bolt does not entirely close.

Any advice on the issue would be appreciated.

[rcmodel]

Throw away the after-market 10-round mag that doesn't work and put the factory mag back in it.

rc

[Ryder]

I agree with previous poster. If it doesn't malfunction with 5 rounders it is definately the magazine's fault.

Could be ammo dependant. Semi-auto cycles best with medium weight bullets, pushed by a "medium" load. If you're shooting some super duper hot elephant killer bullets it isn't going to like that no matter what magazine you're using.

My 7400 carbine loves the 165gr ballistic tips and 4064 :D
1" MOA and never a malfunction since I bought it (20ish years ago?).

[Uncle Mike]

Like rc said...scrap the 10 rounder.