Bullets tipping or tilting!

[CWLONGSHOT]

The 310g (Accurate 36-310w) I shoot in my Whelen and Norma Mag are not close to that hard (and not gc) but powder coated @ just under and just over 2000 fps. ZERO STABILIZATION issues ever. My Whelen is 1:12 and the NM is a JES rebore 1:14.

These bullets are probably hard WW alloy so maybe Lyman#2 hard. I did get a slight leading in the NM but not allot.

Knowing the hardness and the velocity and twist rate... Not sure this wasn't just a anomaly. Was it repeated?

Shooting my 35 Whelen W/Cast

My cast bullets from molds made by Accurate Bullet Molds. Models 36-270c & 36-310W. Both of these where shot over a Ladder of 3031 powder.

rumble.com

Range day with my 358 Norma Magnum

Shooting my cast Accurate 36-310w 310g slick side cast bullet. I loaded these with the help of Quick Loads watching a few things like pressure @ my targeted velocities. Then I backed off a full 5g and

rumble.com

 

[HHD WV]

The 310g (Accurate 36-310w) I shoot in my Whelen and Norma Mag are not close to that hard (and not gc) but powder coated @ just under and just over 2000 fps. ZERO STABILIZATION issues ever. My Whelen is 1:12 and the NM is a JES rebore 1:14.

These bullets are probably hard WW alloy so maybe Lyman#2 hard. I did get a slight leading in the NM but not allot.

Knowing the hardness and the velocity and twist rate... Not sure this wasn't just a anomaly. Was it repeated?

Shooting my 35 Whelen W/Cast

My cast bullets from molds made by Accurate Bullet Molds. Models 36-270c & 36-310W. Both of these where shot over a Ladder of 3031 powder.

rumble.com

Range day with my 358 Norma Magnum

Shooting my cast Accurate 36-310w 310g slick side cast bullet. I loaded these with the help of Quick Loads watching a few things like pressure @ my targeted velocities. Then I backed off a full 5g and

rumble.com

I plan to shoot some more of those loads in a couple of days. If more velocity helps I’ll soon know. I had a scope failure and have replaced the original scope. Harles

 

[HHD WV]

Thanks everyone for your help! Will let you know some more results in a few days! Harles

 

[Tomme boy]

Your target not straight up and down will show a bullet that is tipping or unstable

 

[Snakeoil]

Slug the barrel.

 

[JonB]

Do we know what gun?
and what caliber?

 

[HHD WV]

Do we know what gun?
and what caliber?

Should’ve been in original post, oops, .35 Whelan. JES rebore On Howa 25-06, 1 in 12 rate of twist, 2 grooves. Harles

 

[Bret4207]

I think you've outlined the problem and that Ian is on the right track. 2 groove barrel which, as Ian said, displaces a LOT of metal and a bullet that is way harder than needed. My bet is that something nasty is happening to the bullet as it enters the throat and begins engraving. Dynamic fit. A recovered bullet might just tell you a whole bunch. Just because the alloy is relatively hard doesn't mean it's tough enough to stand that amount of change. Something softer and more elastic may work better.

How about cartridge runout? Any wobble when a loaded round is rolled across a smooth surface?

 

[HHD WV]

I think you've outlined the problem and that Ian is on the right track. 2 groove barrel which, as Ian said, displaces a LOT of metal and a bullet that is way harder than needed. My bet is that something nasty is happening to the bullet as it enters the throat and begins engraving. Dynamic fit. A recovered bullet might just tell you a whole bunch. Just because the alloy is relatively hard doesn't mean it's tough enough to stand that amount of change. Something softer and more elastic may work better.

How about cartridge runout? Any wobble when a loaded round is rolled across a smooth surface?

I’ll try that next. Thanks Bret.

 

[popper]

What alloy? 28 BHN is plenty hard and 2 groove does displace a lot of alloy. But the grooves give it a place to go. I noticed a problem on some 30 cal, displaced alloy broke off and caused accuracy problems. Also the large front band can cause a torque that would fracture at the crimp groove. Some didn't break but twisted right there.

 

[HHD WV]

What alloy? 28 BHN is plenty hard and 2 groove does displace a lot of alloy. But the grooves give it a place to go. I noticed a problem on some 30 cal, displaced alloy broke off and caused accuracy problems. Also the large front band can cause a torque that would fracture at the crimp groove. Some didn't break but twisted right there.

Wheel weight alloy, oven heated to 450 degrees for one hour, dunked in cold water to cool. Plan to try acww next for, maybe, a tougher bullet. Harles

 

[358156 hp]

I suppose it's also possible that 50 yards is too close for this combination, and that the bullet hasn't fully stabilized, or "gone to sleep" at this point. This sort of condition is possibly what leads people to claim that their rifle shoots tighter groups at 150 yards than it does at 50 yards.

 

[Ian]

The Lee 6.5mm Cruise Missile takes at least 150 yards to quit yawing even at over 2,000 feet per second from a 5-turn-per-meter rifle. It makes OK groups even with oblong holes. Boat tails also take some time/distance to settle down sometimes.

 

[Bret4207]

Huh! Whoda thunk it! Interesting.

 

[JWFilips]

I find a Slight Yawing bullet to be more accurate at low speeds! When It yaws it is at the most accurate at 50 yards "Low Node" speeds

 

[Ian]

I find a Slight Yawing bullet to be more accurate at low speeds! When It yaws it is at the most accurate at 50 yards "Low Node" speeds

Yup. Two different rifles shooting the same 230-grain bullet. The one on the bottom was aimed with a 3 MOA reflex optic and has an 8" twist, 10.5" barrel. The top target was shot with a night vision scope, 7" twist, 16.25" barrel. They both group well out to 200 yards if you give it enough elevation (about 20").

 

[waco]

Darth Maul…..

 

[Ian]

When you have over a dozen of the damned things in five calibers, naming them starts to really make sense. PCT. 30, Bambi, Lipstick, Tuna Salad (don't ask), Candygram, Rambo, Foureyes, Meat, Potatoes, Fist full of Yuan, Basket Case, and a couple I can't repeat here.

 

[fiver]

it could simply be a soft backer, or a bunch of targets behind the one your shooting.

rifle names... LOL
let's see.
i got the old 1300, mom's 1300, the Bergara, the 25-06, the ruger 25-06, the long stocked 303, the short stocked 303, the black gun, jackies shotgun, jackies rifle, the gun Dawn thinks is her's but it's mine, Dawn's shotgun, Cody's Escort [my favorite named gun]
John's 220,, mainly because it used to Be Johns rifle, but now i have it, and i also have another 220 swift which i simply call the savage 220 cause it was made by savage, the 94 in 32, the old 94, the short 94, the 94 in 44, the silver 44, the browning 44, the short 44, the navy arms 45, the 45 carbine, the 94 in 45, the 45 that looks just like the navy arms 45.
on and on and on.

But names? no,, no names.

 

[Bret4207]

I find a Slight Yawing bullet to be more accurate at low speeds! When It yaws it is at the most accurate at 50 yards "Low Node" speeds

Huh, that kind of goes against conventional theory. Again, interesting.