MuleyFever
WKR
I didnt have any issues when I tried to work up a load with some Barnes in a rifle that shot Accubonds excellent. Never got the Barnes to shoot well and the Accubonds continued to shoot great.
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I haven't done an experiment (but maybe I will one day) to see if it has an effect on groups, I am not trying to claim it does or doesn't, but they don't inherently completely fall apart.Interesting, when were experimenting with mono (Barnes) about 10 years ago our groups would completely fall apart if we didn’t clean between the 2 types of bullets.
This was our experience as well with ttsx’s. We had Bergers shooting 5 round groups shooting 3/4” through hundreds of rounds. We were experimenting with ttsx’s for a possible hunt in CA. The ttsx’s grouped great but when we started to shoot the Bergers for a few groups the smallest group was 1.4”. That night we cleaned the barrel back to bare steel and after about 6 foulers the next day it was right back to its original group size. I know it’s not scientific but it was very clear what caused the problem.I have heard people suggest that mixing copper-solids and traditional cup and core ammo will degrade groups. I had the same thing happen going between ttsx's and various lead bullets, and people suggested cleaning the bore back to bare steel--I did, and it did help, groups tightened up back to normal with no other change. And this is with 10-round groups so should have been reasonable in terms of eliminating simple group-size variability, etc. However, I'm really not clear how universal that is, as I also have a rifle that I mix frequently that doesnt seem to care. I suppose it's possible that it depends on the barrel, as well as on the brand of copper bullet and whatever exact metal they use. I am not aware of anyone ever having tested this in at all of a "scientific" way, so who knows.
Cleaning is easy to try though, should not hurt to do a good clean with a copper solvent, and if it works, it works. If not, you're only 10 rounds poorer for it.