1-10 twist 30-06 Boolit weight

[NWFLYJ]

I have a 30-06 1-10 twist heavy Shaw barrel on a 700 Remington. I played with 200+ 311466's over varied amounts of Unique.
I was not jump up and down happy with it at 50yds. A shooter buddy of mine said that the boolit weight needs to be 165gns for it to stabilize properly.

Does this sound right? I load lots of pistol and have had great/wonderful groups and results.

Thanks for the input Mark

[RU shooter]

I shoot lots of the 311466 and the Lee 155 in my 1:10 30-06 barrel and all shoot fine from 900-1800 fps

[Marlin Junky]

I have a 30-06 1-10 twist heavy Shaw barrel on a 700 Remington. I played with 200+ 311466's over varied amounts of Unique.
I was not jump up and down happy with it at 50yds. A shooter buddy of mine said that the boolit weight needs to be 165gns for it to stabilize properly.

Does this sound right? I load lots of pistol and have had great/wonderful groups and results.

Thanks for the input Mark

Worry more about getting the boolit started in the barrel straight than its weight.

MJ

[NWFLYJ]

I shoot lots of the 311466 and the Lee 155 in my 1:10 30-06 barrel and all shoot fine from 900-1800 fps

Thanks RU, I will borrow a buddys chrono and see where I'm at with it. I started with 12.0gn and increased by 1.0gn stopping at 17.0. Best group was at 15gn.
I then loaded 14.5, 15.0, and 15.5 with 15.5 the smallest of the three.
So it loks like the boolit weight is not the problem. Mark


Worry more about getting the boolit started in the barrel straight than its weight.

MJ

Thanks Marlin, I will revist my process. My M1A1 with the same boolit groups better (have not worked a load for it yet) than the 30-06 does at 50yds.
Are you suggesting bolt face, lugs, and getting the barrel aligned to the receiver?
Thanks Mark

[Ben]

NWFLYJ :

While Unique can deliver some fine groups with charges ranging from 10 grs. - 13 grains, it is not the final word as a cast bullet powder in the 30 - 06.

2400, 4227, RL - 7, IMR - 4198, and many more medium burning rate powders, will also give fine results.

Might be nice to try 16.0 grs. of 2400 with that bullet ? ? ?

I have doubts that the 1-10 twist is your problem when it comes to accuracy with your rifle.

What dia. are you sizing the 311466 to ? .309, .310, .311 ? ?

[NWFLYJ]

NWFLYJ :
What dia. are you sizing the 311466 to ? .309, .310, .311 ? ?

I'm sizing to .311, Felix lube. Mark

[Ben]

Do you have a .309 and a .310 sizer ?

Might be worth a try ?

[NWFLYJ]

Do you have a .309 and a .310 sizer ?

Might be worth a try ?

Looks like those are on top of the next things to get for reloading list!

[45 2.1]

While Unique can deliver some fine groups with charges ranging from 10 grs. - 13 grains, it is not the final word as a cast bullet powder in the 30 - 06. Maybe not, but if you get out of that range you might just be very suprised what it can do.

2400, 4227, RL - 7, IMR - 4198, and many more medium burning rate powders, will also give fine results.

Might be nice to try 16.0 grs. of 2400 with that bullet ? ? ? Not at longer ranges..................

I have doubts that the 1-10 twist is your problem when it comes to accuracy with your rifle. Very true............

[AZ-Stew]

I have a 30-06 1-10 twist heavy Shaw barrel on a 700 Remington. I played with 200+ 311466's over varied amounts of Unique.
I was not jump up and down happy with it at 50yds. A shooter buddy of mine said that the boolit weight needs to be 165gns for it to stabilize properly.

Does this sound right? I load lots of pistol and have had great/wonderful groups and results.

Thanks for the input Mark

You don't say whether your buddy was talking about cast or jacketed projectiles, but I can assure you that they don't have to be 165 grains to stabilize. My Rem 700 and M1 Garand will work very accurately with lighter projectiles and they are both 1:10 rifling twist. I shoot 150 grain bullets from the Remington into an inch at 100 yards, and I created a reduced-recoil load for my wife to shoot in the Garand using 125 grain bullets.

Bullet stability is related to twist rate and bullet length, not bullet weight. In addition, you don't have to worry about stability unless the bullet is too long for the twist rate and velocity, not too short (light).

That said, I tried using Unique in the .221 Fireball cartridge several weeks ago, under the RCBS 55 gr gas check flat nose boolit. I got the loads from one of my manuals (which one slips my mind right now), but the starting load with Unique had to be below 1,000 fps, considering the amount of drop at 100 yards. Accuracy improved as the charge weight increassed, but even in the maximum recommended load didn't come close to the accuracy I got from IMR-4198. If I were you, I'd look to a slower powder that takes up more space in the case.

Regards,

Stew

[x101airborne]

as long as it does not bind up in the magazine, i would try increasing the COAL until i was in full contact with the rifling. my 7mm-08 shot poorly until i worked up with the boolit .002 into the lands.

[Marlin Junky]

Are you suggesting bolt face, lugs, and getting the barrel aligned to the receiver?
Thanks Mark

No, I'm suggesting you fit the boolit to the throat and ensure it's aligned with the bore when the primer snaps; and, while the boolit shouldn't jump to the rifling, you shouldn't have to grunt to close your bolt handle. Also, for good measure, use a powder that peaks a little later in the burn than Unique. You may also need to fiddle with alloy hardnesses a bit because an excessively hard alloy may alter the burning characteristics of the faster burning powders somewhat (cause them to peak faster). If you're just using WW alloy, it's probably nothing to be concerned about.

MJ

[leadman]

I also shoot a 200gr boolit out of the '06, 314299.
2400 works around 18grs. along with SR4759. Unique is not as accurate.

[NWFLYJ]

You don't say whether your buddy was talking about cast or jacketed projectiles, close to the accuracy I got from IMR-4198. If I were you, I'd look to a slower powder that takes up more space in the case.
Stew

I'm sure he was refering to jacketed. I have some 4198 I will try. Thanks



as long as it does not bind up in the magazine, i would try increasing the COAL until i was in full contact with the rifling. my 7mm-08 shot poorly until i worked up with the boolit .002 into the lands.

Do you less than the boolit dia on seating depth? Thanks Mark

[pdawg_shooter]

I size my 311466s .3015 and wrap with 2 wraps of 16# paper. Loaf over 59.0gr 4350. It shoots int 1.5/1.75". Same as jacketed.

[Ben]

Might be nice to try 16.0 grs. of 2400 with that bullet ? ? ? Not at longer ranges..................



45 2.1 :

NWFLYJ indicated that he was shooting at 50 yards, hence my suggestion of 16 grs. of 2400.

[NWFLYJ]

No, I'm suggesting you fit the boolit to the throat and ensure it's aligned with the bore when the primer snaps; and, while the boolit shouldn't jump to the rifling, you shouldn't have to grunt to close your bolt handle. Also, for good measure, use a powder that peaks a little later in the burn than Unique. You may also need to fiddle with alloy hardnesses a bit because an excessively hard alloy may alter the burning characteristics of the faster burning powders somewhat (cause them to peak faster). If you're just using WW alloy, it's probably nothing to be concerned about.

MJ

OK I get what you are saying. Yes I am using WW. Thanks Mark

[runfiverun]

i'd forget the unique right off.
2400 through the slower cast powders have done much,much better for me.
you might want to waterdrop the boolits also.

[Larry Gibson]

NWFLYJ

You might inform your "buddy" that the 10" twist for the '06 is a hold over from the 30-40 and the .30-03 shooting 220 gr FMJ's. As already noted by several the twist is not the problem. I also suggest using a medium powder with that bullet if it is a 200 gr bullet. Try 28 - 30 gr of 4895 with a 1/2 - 3/4 gr dacron filler. A 165 gr bullet will most often stabilize better in a 12" twist and a 200 gr cast bullet also does very well in 12" twists.

Larry Gibson

[NWFLYJ]

Thank you all for the input. What a great forum. Mark

[Char-Gar]

I agree with others that the rifling twist is not the root of your disatisfaction. It is is hard to know what is, without standing over your shoulder as you cast and shoot.

But your 311466 cast of ACWW or harder, sized .310, a good lube, over 16/2400 won't shoot well in your rifle, then there is something amiss.

[geargnasher]

150-180 grain range works fine at 1500-2500 fps. Heat-treated 50/50 WW/pure plus 2% tin and Felix lube help, as does perfect boolit/gun fit.

H4350 is my favorite cast boolit powder with the '06, best accuracy with my ten-twist sporter is between 2200-2350 fps.

Gear

[PAT303]

My Lee Enfields have 1-10 twist barrels and I've shot 90grn wadcutters to 230grn bore riders with everything in between and all have shot true.Get the boolit size right and load them straight and go from there. Pat