GAP built me a 6.5 SAUM hunting rifle recently and I hated the center feed BDL they built me......very tough to get the ammo into the box, especially if you have a rail above the action. I called George at GAP and he told me "had you ordered directly from me, I would have talked you out of a BDL". That cartridge is extremely temperamental in a BDL. We ultimately sent the gun back to get a DBM installed. Very happy with that now, although it was something new to get used to, since all my previous rifles were BDL's too. If serious about a BDL, call George at GAP. I spoke to Wyatt and his follower didn't work well for me either. Save yourself the pain and $ (cost me $750 to trouble shoot, try different things, then change to a DBM) and go with a DBM in the first place. Just my $0.02.