Re: Which Geissele for AR15?
I have a SSA in my 5.56 and the High Speed DMR in my .308. The DMR is lighter and crisper than the SSA, and adjustable, so affords greater precision. I use the 5.56 for shots out to about 300 yards, so the SSA is plenty precise for me at that range. If all you need is MOA out to 300 or 400 yards, the SSA is more than capable of that.
For longer shots using the .308 more precision is useful, so I looked at the SSA-E. I came across a used DMR for less than the cost of a new SSA-E, otherwise I would have gotten the SSA-E as it is easier to install and deal with.
I think I have the DMR set to basically the same weights that the SSA-E comes with out of the box, so the only slight advantage I ended up with is a higher speed hammer, and the pleasure of spending an hour to install and adjust.
Adjusting the pull weights and creep on the DMR took some time to get just right, but it was well worth the effort. I did have a concern about the set screws coming loose over time, but a few hundred rounds later all is good. I haven't heard about the need for ongoing adjustment of the set screws, and BG told me they are designed to remain stable once they are set, without any need for loctite.