6.5-06 AI 120gr Swift - Loads??

[elkaholic]

A final update to close this thread in case someone trying to work up an -06AI does a search....

I went back and did some seating depth tests on teh load above and tweaked out a bit bore accuracy and now I do not have to worry about the bullet pulling out and dropping powder at end of unsuccessful day of hunting.

130 gr Berger, 59.2 H1000, Federal 210M primer, lapua brass, 2930 fps, Jump to lands was higher than I expected at .150. Less than .5 moa repeatable and 1st cold clean shot dead on. Sweet!!!

Good job Aldon! Perseverance pays

 

[65WSM]

I am assembling the pieces to make a 9 twist 6.5-270 Ackley Improved. I want a longer neck than I have on my 6.5-284 and 6.5 WSM(2)s. I spoke to the Swedish Chemist who developed Reloader 22 at the NRA Convention in Seattle shortly after it was released. It gets cold in Sweden in the Winter and this powder was tested in the cold. The Army chose Reloader 15 for its 308 sniper ammo because of its cold weather performance. I have fished with a man (Dennis Skailand) who worked for Aberdeen proving ground. He spent a month in Nome testing ammunition in the Winter. Then he went to Panama to repeat the tests.

With the 6.5-284 and 120 Ballistic tips and 130 Accubonds Vithavuori N-560 was at least 80 fps faster than 4000MR, Ramshot Magnum, Retumbo, Reloader 22, Reloader 25 or MagPro. I intend to test Winchester 780 further. I would expect similar results in the slightly larger case.

 

[elkaholic]

I am assembling the pieces to make a 9 twist 6.5-270 Ackley Improved. I want a longer neck than I have on my 6.5-284 and 6.5 WSM(2)s. I spoke to the Swedish Chemist who developed Reloader 22 at the NRA Convention in Seattle shortly after it was released. It gets cold in Sweden in the Winter and this powder was tested in the cold. The Army chose Reloader 15 for its 308 sniper ammo because of its cold weather performance. I have fished with a man (Dennis Skailand) who worked for Aberdeen proving ground. He spent a month in Nome testing ammunition in the Winter. Then he went to Panama to repeat the tests.

With the 6.5-284 and 120 Ballistic tips and 130 Accubonds Vithavuori N-560 was at least 80 fps faster than 4000MR, Ramshot Magnum, Retumbo, Reloader 22, Reloader 25 or MagPro. I intend to test Winchester 780 further. I would expect similar results in the slightly larger case.

Have you considered the 6.5 Sherman? I shot an A.I. for years and then developed this cartridge a few years back. It will outperform the A.I. with about a 5% increase in capacity and has a far better neck than the WSM or 6.5/284. I have both a turned neck version and a no turn version. I can reach 3200' with 140's.......Rich

 

[65WSM]

I can use a 25-06 Redding Bushing die for 6.5-270 Ackley. What can I use to size a 6.5 Sherman?

 

[elkaholic]

I can use a 25-06 Redding Bushing die for 6.5-270 Ackley. What can I use to size a 6.5 Sherman?

Both use the same parent and the Sherman is a few thou shorter overall length. It has less taper in the body and the shoulder is farther forward. I use custom full length dies for mine from Hornady.......Rich

 

[65WSM]

My interest is in neck length. I want to use bushings to size about 2/3 of the neck and leave the rest unsized to center the case in the chamber. I can use different bushings for different brass and bullet combinations and adjust the neck tension.

I can use my assortment of bushings to go from .270 Win brass to 6.5 in steps

I will use a Wilson seater cut with the reamer.

I do not think that more case volume will equal more velocity. The VV N-560 powder is so efficient in the 6.5-284 that the larger .270 WSM case cannot surpass it and requires different powders to compete.

 

[elkaholic]

My interest is in neck length. I want to use bushings to size about 2/3 of the neck and leave the rest unsized to center the case in the chamber. I can use different bushings for different brass and bullet combinations and adjust the neck tension.

I can use my assortment of bushings to go from .270 Win brass to 6.5 in steps

I will use a Wilson seater cut with the reamer.

I do not think that more case volume will equal more velocity. The VV N-560 powder is so efficient in the 6.5-284 that the larger .270 WSM case cannot surpass it and requires different powders to compete.

Can you get 3200' with a 26" barrel? I increased velocity over the A.I.'s that I had......Rich

 

[65WSM]

This may be hard to read. Send me an e-mail and I will send you the spreadsheets for 6.5-284 and 6.5 WSM. Below is a section from the 6.5-284 data
All velocities are instrumental and usually at 15 feet. You can see that 3300 fps or at least 3280 possible with 56 -57 gr of N-560 propelling 130 Accubonds in at 26 inch barreled M-70. I use HBN coated bullets.

Case Length 2.17

130AB 3.035 OAL

Water 66.540


130 AB N-560 54.6 gr 3132 CCI 200
3069 3139 3136 3185.000 F1 cold 3.0375 OAL 130 AB N-560 54.6 gr 3184 CCI 200
3170 3188 3195



130 AB N-560 54.6 gr 3196 CCI 200
3199 3209 3188 3186.000


130 AB N-560 56.40 3222 210M 20 3201 3221 3214 3221 3255

130 AB N-560 57.09 3290 210M 31 3277 3281 3336 3267


130 AB N-560 56.90 3291
7 3298 3295 3281 3290


130 AB N-560 56.90 3283 CCI 200 20 3283 3281 3309 3260


130 AB N-560 56.60 3256 CCI 200 13 3245 3273 3247 3260
3.44 OAL
130 AB 4000-MR Wolf Primers 53.39 3164 Wolf 12 3172 3152 3160 3180 3155

130 AB N-560 Wolf Primers 56.40 3263 Wolf 17 3264 3271 3277 3239 Max Pressure
130 AB MagPro 58.50 3117 CCI 250 54 3079 3155
2.963 OAL Extractor Mark Stiff Bolt lift 130 AB MagPro 59.00 3200 CCI 250

3200

Very stiff pulled the rest of bullets











120 B-tip N-560 58.48 3359
3.035 OAL 3380 3361 3346 3347
210M Sized .296 120 B-tip N-560 58.48 3353
13 3360 3357 3342
210M 3.045 OAL first two touching 120 B-tip N-560 58.48 3345

Stiff bolt maximum





120 B-tip N-560 58.17 3361
17 3350 3388 3352 3350 3363

120 B-tip N-560 57.86 3318
6 3346 3303 3315 3307
3.050 OAL 120 B-tip N-560 57.86 3321
15 3315 3313 3315 3340
210M
120 B-tip N-560 58.02 3384
23 3359 3368 3396 3413


120 B-tip N-560 58.94 3350





Too Hot

120 B-tip N-560 59.50 3388
162 3432 3480 3251
Primer fell out during extraction 120 B-tip N-560 58.48 3391 36 3333 3412 3428 3399 3383 ,12/17/2011 BR2 Control for 4000-MR below 120 B-tip N-560 58.17 3401 5 3394 3399 3403

5/8/2012 BR2 1/2 inch 120 B-tip 4000MR 53.00 3355

3353 3357

Tight extractor mark 120 B-tip 4000MR 54.00 3428





Too Hot Pulled the rest. 120 B-tip 4000MR 53.00 3164 10 210M 3176 3168 3153 3158 good group 12/17/2011 120 B-tip 4000MR 53.00 3138 17 BR2 3150 3126

,12/17/2011 2.98 OAL 120 B-tip 4000MR 54.00 3154 45 BR2 3195 3090 3158 3171 ,12/17/2011 2.98 OAL 120 B-tip MagPro 60.50 3256 30 CCI 250 3235 3277 Stiff bolt lift



120 B-tip MagPro 61.00 3267
CCI 250 3267
Pulled the rest of bullets
61.5 gr is book max with 123 Scenar 100 Sier HP R-17 54.00 3388 19 Wolf 3404 3393 3367
########

100 Sier HP R-17 53.00 3270
Wolf 3333 3206




100 Sier HP 5744 1.95 g 2528

2518 2538
first cold


85 gr Sierra 5744 2.175 g 2900








85 gr Sierra 5744 2.20 g 2942

2955 2916 2949 2927.000 2975 2936 2938

 

[elkaholic]

E-mail is [email protected]
If you use the same bullets, etc., I guarantee you will gain velocity......Rich

 

[65WSM]

The same bullets in the same barrel by the same manufacturer with the same twist does not gain velocity with the WSM case. The velocity with a wide range of powders is equal or less. If there was a VV N-565 there might be an advantage. N-570 is slower than Retumbo so helps only with 140 and 160 gr bullets. I am experimenting with an 8 twist 28 inch 6.5 WSM barrel and N570 now.

 

[JeffP40]

I had the same pressure results as Dano in my AI. With the straight wall it sneaks up on you. I started with Win. 25-06 brass and 4831sc, then went to 7828. After about 2 or 3 loads, the primer pockets were gone. I found that Rem brass weighs about 6g more and seems to be tougher. I only have a 10' twist, so 120s or lighter for me. I could get 100s to 3500+ and 120s to 3200. 7828 got me there, but pressure was a bit high. I tried Hunter, and found velocity was there, pressure wasn't. No more pocket problems, but did get hangfires with standard primers. Went to mag. and all is well. This is with a 28" barrel. It is now my favorite shooter. Trajectory is very flat, about 21moa at 1000. Fun to shoot with the 123A-max.

 

[loaders_loft]

WOW that is some pretty fast velocity with the 130's! I'm doing 3090 with the 130 scirocco II in my 6.5-06 springfield, using the N560 powder as well. I have plenty of neck clearance, so I may eventually switch from my current rem 25-06 brass to the lapua 30-06 brass, and with it I will probably swing a bit more velocity. However, it took some work getting sub-MOA with the scirrocco's, so I'm not looking forward to any more load development with this bullet.

Anyway, I was a bit confused with your posts, are you shooting a 6.5-WSM or a 6.5-06ai with 270win brass??

 

[65WSM]

I am collecting parts for a 6.5-06. So far I have a Rock Creek 9 twist light weight fluted barrel and a Bell & Carlson thumbhole stock. I have ordered a 25-06 Redding bushing die.

I own two 6.5 WSMs and a 6.5-284. I want the neck length to partially resize that the 270 or 25-06 case allows. I have some 270 Nosler brass on hand. I also own a lot of WSM dies and a reamer but I have not found anything outperforms the 130 Accubond from the 6.5-284 case. The higher BC bullets just cannot be driven fast enough to shoot flatter than the 130 AB.

 

[Don A Parsons]

Varget will work for the 6.5/06 behind the 140gr bullets,,, but its pretty hot powder with fast burn rate...

Start low at 36.8gr,,, keep a eye on the cases when you close in on the 39gr...

40 ish to 41.2gr is max in my 65...

Thick Lapua 30/06 brass necked down to 6.5/06... 1:8 twist 25" non lapped barrel...
Fairly tight bore on this rifle...

Ive tested the H4831 and IMR4350,,, those powders will work too...

H1000 is my go to powder 52 to 53 max,,, 2980 ft-per seconds... The accuracy loads are 50.2 to 50.5 gr of H1000 behind the 140 to 143gr bullets... 2710 ft-per seconds... The next lower nod just below the max loads,,, a lot less flash burn on the throat,,, and no streched cases from over-loads...

This was a copy-cat load from my 140gr 270 winchester loads I've worked up... I hope I can get a few more jugs of H1000 ,,, RL powders are challenging to get up here in our area...