Did it come with the frame weight? Some folks always shot with the frame weight attached.
1) Buy a box of factory ammo and try it.
2) Never trust someone else's reloads
3) If firing L-HBWCs, be sure velocity is under 800 fps. Above that, and I get consistent separation of the skirt from the rest of the bullet and either get two holes in the target for each shot or I have a barrel obstruction left in the barrel. L-HBWCs are by far the most accurate, but you MUST keep velocity down.
4) If/when you decide to reload, I'll let you know the tricks I found to equal factory ammo for accuracy.