Heavy Carbine buffers?

[Goodburbon]

My spikes 14.5 middy won't cycle cheap ammo with the t2 buffer installed. Swap to a standard buffer, and it runs fine.

[muddywings]

My spikes 14.5 middy won't cycle cheap ammo with the t2 buffer installed. Swap to a standard buffer, and it runs fine.

my 16 inch middy with the T2 would cycle (90%) cheap stuff but no way would it lock on the last round.

[johngraves2]

I tired searching and couldn't find the answer i needed, and this seemed like the closest thread to my question:

What is a good buffer weight for a mid-length, 16in. barrel. it functions fine now, but I am wondering if there would be a benefit in getting an H or H2. I was looking at getting one of the spikes buffers.

[kwando]

I run H buffers on my middys and they cycle fine. Very smooth shooting

[ray1970]

I run the H buffer in all of my 5.56 rifles. I've run them with no problems in 14.5" and 16" barrels with both carbine and mid length gas systems.