Testing today proved the 58gr.LBT flat nose to be accurate.As this bullet is for larger game than normaly shot with the.25 cal.sumatra,the test range was closer.30yrds.1/2in.groups were the average.The best weight bullets in the sumatra seem to run 40to60gr.Any heavier,and the bullets tumble on impact.For"subsistance"hunting,we need deep,straight wound chanels.For this use I find the 50to 58gr.bullets work best for me.