Yes, can be a big improvement.
Some general findings.
Unless barrel is a real good one, a flat base bullet will do better than a boattail.
In a poor barrel, a round nose will do better than a spitzer.
A moderate does of a medium speed powder like 3031, 4895, 4064, BLC2, H335 748, Varget works well.
Try sizing your brass so that only 3/4 of the neck length is sized. This will leave the body almost untouched. See if a case sized this way will chamber. If so, lock your die to this position and avoid over working the brass. it will last much longer.
I usually use 180 gr spitzers or 174gr round nose.