I have a new Tikka T-3 in 25-06. I started with two bags of brass, did a little sorting, and I am now mixing fireforming brass with some load development. I am using the Nosler Guide #6, and loading middle level charges in 6 different powders. I've used 100 gr Ballistic Tips and Accubonds and so far I am average almost 300 fps below book. I expected 150, but not 300. Powders include IMR 4350 and 4831, RL 17,19, and 22, and Retumbo. The fastest load has barely broke 3000, with the slowest in the high 2700's. Barrel is cleaned between each group and Fed 210 primers are used. Does this seem normal? Does the 22+ inch barrel cost me that much velocity. The bullets is seated to kiss the lands, that should add velocity not take it away right?