has anyone had problems groupin boattail 6.8 rounds

[SpitFire6.8]

HTR

So RE10X for the AB's, not AA2200, I am wanting something that will work from 110 AB's to 85 E-tip or TSX. Is RE10X that powder? Your opinion is in my highest regards so please let me know.

[HTR]

HTR

So RE10X for the AB's, not AA2200, I am wanting something that will work from 110 AB's to 85 E-tip or TSX. Is RE10X that powder? Your opinion is in my highest regards so please let me know.

So far, the AA2200 seems to have a broader range of bullet which do well with it, versus Re10X. The 10X has never done as well with the lighter bullets as it does with those > 100 grains. AA2200 has performed well with even the 85 grain bullets, all the way up to 120 SST's.

[SpitFire6.8]

So if I plan to stay 100gr or larger go with the Re10X, but it wont preform for the 95 TTSX? Witch one do you prefer Re10X or AA2200? Personally I would not load an 85gr round because I have plenty of E-Tips From my purchased at wildriverranch, So 100grs and above is all I need;


PS: have you had any dealings with the 100gr AB and would Re10X work for that as well, have load data that you gave Billy but the AB section is blank.

Sorry for the trouble , thanks again!

[Drifter]

With so many variables involved, realize that there are no absolutes. It's difficult for anyone to say with certainty what will be best in your particular barrel with your particular reloading techniques.

That being said, there are often tendencies among barrels of the same brand, overall length, and gas system length when it comes to powder and bullet preferences. Check around the forum to see what's working for others who have the exact same barrel model that you're using. Still not a guarantee, but perhaps better odds of predicting what might work best for you.

[chasw]

In all calibers, I usually get better accuracy at 100 yards with flat based bullets, than with boattail designs. As HTR explains, boattails tend to outdo flatbased bullets at longer ranges, where their superior BC outweighs their little bit of wobble. - CW

[HTR]

While I do agree with Drifter that some of my loads won't necessarily give optimal results in other people's barrels, there have been some general trends seen with 6.8 loads that stand up in almost all rifles. Here are some of my general observations over about 6 years of testing:

1) 90 grain TNT's with 29 grains Re 7 are accurate in every 6.8 I've ever fired, including an old M1S tester/ beater barrel with 1:9.5" twist and (blown out) SAAMI chamber. My ARP 12/ 3 produced groups that measured around .3 inches CTC...one ragged hole...flat based bullet.




2) 85 TSX with 29.5 grains RE7 are accurate in almost every 6.8 I've ever fired. So far, the 85 E-tips seem to perform almost as well. I have fired some 3/4 MOA groups out of my bolt gun with them.

3) 110 AB, 110 TSX / TTSX and 95 TTSX all perform well, in most rifles, when loaded with Re10X. All of them performed better, for me, with RE 10X than with H322. The max charge you use depends upon your max OAL, your chamber, twist, rifling config, etc. Almost all of these bullets will compress the powder at around 2.295" with 29 grains. My load for the 95 TTSX was 29.5 grains of RE 10X at 2.295" OAL, and WSRM or CCI 41 primer. That gave me about 3/4 MOA.

4) I used very few of the 100 AB's but yes they worked very well with RE 10X. The reason I didn't shoot more of them was that I was just getting the first 95 TTSX's from Barnes when the 100 AB came out, so I just didn't really have time to work them up. Since I shoot so many pigs, I wanted to develop the 95 TTSX for use on both animals. The 100 AB's worked extremely well on deer, but I never got the velocity up much over 2750 FPS, surprisingly.

5) despite all the hoopla about AA2200, I have always said a guy could do almost anything he wanted with the 6.8, just simply using Re 7 and Re 10X. AA2200 is great powder and nothing really new, but if all you had was RE 7 and 10 X you would still be GTG, IMHO.

No trouble at all! This is what 68 forums is all about.

[SpitFire6.8]

HTR your a freakin vault of knowledge; our forum greatly loves all the foot work you put in, literally, thanks for all the help and patience! Hopefully one day I'll quit askin so many questions, probably not!

[averagejoe616]

This isnt my thread but thanks alot to htr, this has helped me out alot.

[68WJ]

This isnt my thread but thanks alot to htr, this has helped me out alot.

He has a tendency to do that.

[rifter]

Cleaned the barrel already, that was my first thought when my accuracy was not where I wanted it. This is the first grouping issue I've run into, but I've only tried flat based bullets and have only used H322 as have had good results till now.

Get ya some AA-2200, and try that with the 110 Hornady BTHP. 28.5 gr. in my RRA goes sub MOA at 100 yds when my eyes cooperate. I'm using Remington LP (CCI-34) brass, and the RRA is a 16" 1:10 spec II barrel. Avg. fps is about 2680 +-.