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If you can get a cast 6.5 bullet and "upset" it in the bore it will make a better slug. If you need one I will send it out tomorrow. Just PM address.
I would guess it would be hard to feel. In my mind I’m picturing it as less of a uniform expansion and more of 1/4-1/3 of the diameter of the muzzle warping a very small amount and making the bullet release inconsistently. Like on a scale of .0005. It prob wouldn’t be like a 20 yr old 700 that is just wallowed out at the end. You could get scientific and try cutting off 1/2” at a time to see if and when it makes a difference. If I had the equipment I would have done it with mine just because not knowing drives me nuts lol. I would still say try two groups with different brass.its 24" now...ill try to push a patch see how it feels
like i mentioned up above with slugging, ive done it on a few barrels, but what i felt, i had no real way to gauge good or bad...one barrel that shot great felt loose at the muzzle, another felt tight lol i didnt know what to make the differences i felt
The jump test was to check a theory on jump, and if it was effecting this situation. I have found different rounds come in and out of accuracy in variations of .070 to .100 , of oal, in between nodes. So you don't have to be that close to the lands, and still find accurate loads.
I was just curious if you were possibly changing the timing of the bullet leaving the barrel from changing the throat, and a possible variation of finding a loading that is longer. That loading being possibly more stable to throat errosion. It is a stretch to say this was the case, but a possiblity. Along the lines of Chris longs' optimal barrel time theory.
Otherwise loose/ damaged equipment has done this same thing with groups. I have also had barrels drop premature of throat fire cracking for what i assume was a bad barrel. Those barrels also dropped velocity like a bitch.
Maybe it's just soft steel and the barrel is toast early. Heard about a few guys it's happened to, not likely, but not unheard of either. ??![]()
Get more bullet ,redo a jump test and adjust powder charge in consequence.
your overthinking it and you’re overloaded with everyone throwing their 2 cent at You.
Nice! So what does that mean? Something was up with the throat maybe deforming the bullet when it came through?Following, I was going to load up some to test jump last night, but after I had loaded 20 more for testing last time, when I went to grab some more outta the box I found I only had about 20-25 left from this lot
my Smith still wanted to hit the crown and then hit the chamber with a saami FB before I ran outta bullets so this morning he hit the crown about .050”...went and shot it again
Everything below is after recrowning...
top left is hornady brass...I shot 4 then gave up on that route lol
top right is 5 rounds w/ gen 2 and just for covering based I stuck an NF NX8 on it and fired a couple sighters to adjust
View attachment 7211126View attachment 7211130
Labradar is the 2 fire round strings from the Gen 2 and NX8...NX8 group is slightly better but Still pretty much the same
went back to the shop and looked at the notes...original FB was actually .157, not .167
Stuck the saami reamer in there just to recut the FB, headspace left the same...so it should have just pushed the .157 to .199
went back to the range with the same ammo from earlier, had 8 rounds left after the few sighters from the NX8
fired 2 sighters, just to hit the throat with some fire, then shot the last 6 rounds I had...
View attachment 7211132
View attachment 7211133
quite a bit better, and would be jumping .050-.060” in the new throat
only 6 rounds so i still wanna go back another day and verify, but better than any group it’s shot for the Last 30-40 rounds
headin out to hunt for the afternoon so I’ll mess with the few bullet I have left tomorrow or Monday
The flyer going in the same place each time, that is you.
Nice! So what does that mean? Something was up with the throat maybe deforming the bullet when it came through?
Ehh. That’s a difference for sure. May not be the hammer it was before but I’d say you definitely found where the issue was on the rifle.seems so perhaps? I’ll feel better about calling it once I verify another day
I don’t like calling anything for certain off just one trip
I once got a bunch of gunk around my recoil lug and it made my horizontal go to poo.....my vertical was spot on though.
weird lol while it was all still assembled or was it taken apart and it happened on reassemble?
So, what’s the consensus on what happened?
Some sort of pressure situation that jacked up the chamber somehow?
Great. Looks like it is much better. Still not where it was but very usable.