loading for 1:13 twist barrel, 200 gr jacketed

While I'm waiting for my new 1:13 KKM barrel to be fitted , I'm loading ammo to test. Some folks suggest using 200 gr lead bullets with reduced loads for less recoil than obtainable with 185 lead bullets.  I'm loading Zero 185JHP for "modern Ball" matches. Has anyone tried a 200 gr jacketed bullet at low velocity? BTW , the KKM website warned of a 10 week wait , I rec'vd my barrel in 5 days. Similar situation with Zero bullets , most of the order recv'd in 5 days , 148gr hbwc still on backorder. It seems like the supply situation is beginning to settle down.