i have a friend that has a m77 ruger with 3 barrels in .223, why... i dunno
but anyway, we were play'n with them oneday with various handloads.
he was shooting 80gr .224 and they all were unstable. we picked the worst
barrel and chopped it to 19" crowned and tried.....
guess what..... that barrel handled the 80gr out to 200yrds without flip'n out !!!!!
all had same twist... but not as much throw....
these were not hot loaded, same load as before. and the chronied velocity was maybe 75fps faster
and very stable. least resistance would be my bet....
i'd say try them in your handi and stay in the load data guidelines.
good luck and be safe !!!