I have been offered 125, 87gr Hornady Vmax bullets in .243. I'm new to reloading & at the moment only have H380. The Modern reloading manual I have only lists 3 powders for 87 gr bullets of which H380 is not one of them. H380 is listed for 80 & 90 grain jacketed bullets albeit quiet far down the list. It is also listed for 85 gr solid bullets. Would H380 be ok ?? my understanding is that for a given powder the starting load would generally increased slightly for a smaller grain bullet. But the starting load with H380 for both the 80 & 90 gr jacketed bullet is 38.0 grains , so can I assume this to be a safe starting load for a 87gr bullet ???
Why are there so few powders listed for the 87 gr is it not overly used or is there some other reason?