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Old January 10, 2017, 01:53 PM   #1
doofus47
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260 rem and 6.5 Arisaka: is one powder possible?

Over the past several years, I've been slowly inching my way closer to reloading. I've bought a Hornady reloading book and the dies for 9/40 pistol and for 3 different rifle calibers: 260Rem, 6.5 Arisaka and 7.7 Arisaka. I'm probably not going to do the 7.7 arisaka for some time.

I'm naturally a bit cautious and I want to reduce the odds of mistakes, so I'd like to use one powder for the 260Rem and 6.5 Arisaka. The similar size of the cases makes me hopeful that this is possible.

For the 260 Rem, I intend to use 120 grain fmj and and 120 gr. barnes ttsx and 140 grain sp for the 6.5 Arisaka.

I been trolling the internet, but I haven't yet seen a single powder used for both of these; i suspect that the problem is mine.

Has anyone here reloaded both of these calibers using the same powder?

thanks.
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Old January 10, 2017, 02:07 PM   #2
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Hornady's 9th Ed. lists IMR4064 for both these cartridges..... though only for the lighter weight bullets in 260 ......

I've found this powder very versatile, and have used it for everything from 5.56x45 to 30/30 to 7-08 to 270WIN ...... 7 and 8mm Mauser ...... 7.62x54r..... I don't think I own a rifle that I have not burned a bunch of 4064 in.....


Lee's second addition lists it for both cartridges, as well, along with H335 and H380. I've found H335 to be very versatile, as well. Never played with the H380.
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Old January 10, 2017, 05:32 PM   #3
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Hornady 3rd for the Arisaka, Hodgdon website for the 260.
IMR 3031, 4064, 4320, 4350. H 4895, 380, 4831.
Hodgdon also shows B-LC(2) for both.
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Old January 11, 2017, 12:22 PM   #4
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yep, I missed a bunch.
thanks for the help!
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Old January 11, 2017, 12:58 PM   #5
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7.7 Arisaka Data

Caution: This is 7.7 Data, NOT 6.5

"...intend to use 120 grain..." You working up a varmint only load?
As mentioned, IMR4064 is your friend. So is most of the "regular" IMR powders. 4895, etc.
This is out of my old Lyman manual. There's 6.5 Jap data there too if you want it. Pretty much the same IMR powders.
Bullet diameter cast and jacketed: .311" or .312".(Barrels need slugging.)
Max Case Length: 2.269"
Trim-to: 2.260"
Max OAL w. bullet: 3.150"

150 grain Jacketed
Powder Start Vel Max Vel
IMR3031 42.0 2444 46.0 2717
IMR4895 43.0 2386 48.0 2754
IMR4064 43.0 2267 48.0 2666
IMR4320 45.0 2421 49.0 2717
IMR4350 49.0 2304 54.0 2659
H380 47.0 2375 52.0 2695

Accuracy Load: 43.0 grains IMR4064 2267 fps.

180 Grain Jacketed
Powder Start Vel Max Vel
IMR3031 39.0 2202 43.0 2444
IMR4895 42.0 2304 46.0 2564
IMR4064 42.0 2227 46.0 2512
IMR4320 43.0 2302 47.0 2590
IMR4350 47.0 2207 51.0* 2538
H380 45.0 2237 50.0 2525

Accuracy Load: 47.0 grains IMR4350 2207 fps
Factory duplication Load: 44.8 IMR4895 2500 fps.
'*' indicates a compressed load.

215 grain Jacketed(Woodleigh makes 'em. Midway sells 'em.)
Powder Start Vel Max Vel
IMR3031 35.0 1992 39.0 2178
IMR4895 39.0 2127 43.0 2352
IMR4064 39.0 2053 43.0 2293
IMR4320 41.0 2178 44.0 2347
H380 43.0 2123 48.0 2352

Accuracy Load: 49.0 grains IMR4350 2375 fps.
Factory Duplication Load: 40.0 IMR4895 2197 fps.

155 grain Cast w. Gas Check
Lyman mold #311466 #2 alloy
Powder Start Vel Max Vel
Unique 11.0 1470 15.0 1739
2400 22.0 1821 24.0 1953

205 grain Cast w. Gas Check
Lyman mold #311299 #2 alloy
Powder Start Vel Max Vel
Unique 10.0 1250 14.0 1524
2400 21.0 1607 24.0 1792
IMR4227 28.0 1923 30.0 2049

213/214 grain Cast w. Gas Check
Lyman molds #311290 and #311284 respectively(Montana Bullet Co makes the 213 at least)
Powder Start Vel Max Vel
Unique 10.0 1214 13.0 1423
2400 21.0 1595 24.0 1739
IMR4227 28.0 1865 30.0 1992

Accuracy Load: 30.0 grains IMR4227 1992 fps.
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Old January 13, 2017, 10:57 AM   #6
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thanks for the help, T. O'Heir.

Are people really shooting 180 grain projectiles from a 260 Remington or 6.5 Arisaka? I didn't think that was possible, but that's not really my goal for reloading these rounds.

I was thinking that the 120 gr TTSX from the 260 Remington would be my go-to replacement for my antelope/deer round if Barnes stopped selling it's own vortex brand. My rifle really likes that round.

The 140 sp (hornady flat base) would be my choice for a 6.5 Arisaka bullet, as it's very close to the 139 gr projectile originally shot by that rifle, and if I decided to take it with me to chase deer in timber, it could do the job for sure. In the mean time it is just one fun round to shoot and I would love to be able to do it for less than $2/bang.
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Old January 13, 2017, 12:35 PM   #7
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Heaviest I have ever seen in .264 is 160gr.
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Old January 13, 2017, 02:16 PM   #8
T. O'Heir
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6.5 Arisaka Data

"...people really shooting 180 grain projectiles..." Evidently they did or wanted to when that data was complied. 1977 publication date, I think. Lyman 23rd Edition. It's 7.7 Jap data though. Dunno why I thought it was a good idea. Let me fix that.
Doesn't appear you can buy 180's though. The original 6.5 Jap bullet was a 160 grain RN. Changed before 1910 to a spitzer when Japan was trying to emulate European armies.
"...My rifle really likes that round..." That'd decide it for me.
This is the 6.5 Jap data.

Bullet diameter jacketed: .264".
Bullet diameter cast: .264" to .266".
Max Case Length: 1.988".
Trim-to: 1.978".
Max OAL w. bullet: 2.940".

85 grain Jacketed
Powder Start Vel Max Vel
IMR3031 33.0 2506 37.0 2898
IMR4895 35.0 2557 39.0 2840
IMR4064 36.0 2500 40.0* 2873
IMR4320 37.0 2577 41.0 2915
H380 39.0 2577 43.5* 2865

Accuracy load: IMR4320 41.0 2915 fps

100 grain Jacketed
Powder Start Vel Max Vel
IMR3031 32.0 2444 36.0 2754
IMR4895 34.0 2415 38.0 2754
IMR4064 35.0 2421 39.0* 2747
IMR4320 36.0 2481 40.0 2840
IMR4350 38.0 2298 41.5* 2525
BALLC2 38.0 2604 41.0 2840
H335 37.0 2590 40.0 2857
H380 39.0 2525 43.0* 2739

Accuracy Load: H335 37.0 2590 fps

120 grain Jacketed
Powder Start Vel Max Vel
IMR3031 31.0 2358 35.0 2638
IMR4895 33.0 2341 37.0 2659
IMR4064 34.0 2358 38.0* 2688
IMR4320 35.0 2375 39.0 2739
IMR4350 38.0 2325 41.5* 2557
BALLC2 35.0 2380 39.0 2672
H335 35.0 2450 38.0 2702
H380 38.0 2439 43.0* 2702

Accuracy Load: IMR4064 34.0 2358 fps

129 grain Jacketed
Powder Start Vel Max Vel
IMR3031 31.0 2314 34.0 2544
IMR4895 32.0 2237 36.0 2525
IMR4064 33.0 2252 37.0* 2570
IMR4320 34.0 2320 38.0 2610
IMR4350 38.0 2298 41.5* 2557
BALLC2 34.0 2257 38.0 2544
H335 34.0 2331 37.0 2551
H380 38.0 2403 42.0* 2610

Accuracy Load: IMR3031 34.0 2544 fps

140 grain Jacketed
Powder Start Vel Max Vel
IMR3031 30.0 2192 33.0 2409
IMR4895 31.0 2150 35.0 2433
IMR4064 32.0 2183 36.0* 2475
IMR4320 33.0 2232 37.0 2512
IMR4350 36.0 2141 40.0* 2409
BALLC2 33.0 2164 37.0 2444
H335 33.0 2252 36.0 2457
H380 37.0 2298 41.0* 2487

Accuracy Load: IMR3031 31.5 2309 fps
Factory Duplication Load: IMR3031 31.2 2272 fps

160 grain Jacketed
Powder Start Vel Max Vel
IMR3031 25.0 1800 28.0 2020
IMR4895 27.0 1824 30.0 2049
IMR4064 28.0 1868 31.0 2087
IMR4320 29.0 1915 32.0 2123
IMR4350 31.0 1778 35.0* 2100
BALLC2 29.0 1860 32.0 2100
H335 28.0 1805 31.0 2070
H380 32.0 1976 36.0* 2164

Accuracy Load: IMR3031 26.5 1923 fps
Factory Duplucation Load: IMR3031 26.5 1901 fps

103 grain Cast w. Gas Check
Lyman Mold #266305 #2 Alloy
Powder Start Vel Max Vel
2400 16.5 1824 19.0 2044
IMR4227 21.0 2028 23.0 2207
IMR4198 24.0 2114 27.0 2352
IMR4895 28.0 2016 33.0 2375

Accuracy Load: IMR4198 24.0 2114 fps

119 grain Cast w. Gas Check
Lyman Mold #266324 #2 Alloy
Powder Start Vel Max Vel
2400 15.0 1615 18.0 1868
IMR4227 19.5 1893 22.0 2083
IMR4198 22.0 1919 24.0 2057
IMR4895 28.0 1976 31.0 2092

Accuracy Load: 2400 15.0 1615 fps

129 grain Cast w. Gas Check
Lyman Mold #266455 #2 Alloy
Powder Start Vel Max Vel
2400 14.0 1488 19.0 1960
IMR4227 19.0 1818 21.0 1988
IMR4198 23.0 1980 27.0 2145
IMR4895 27.0 1996 31.0 2242

Accuracy Load: IMR4198 23.5 1999 fps

143 grain Cast w. Gas Check
Lyman Mold #266469 #2 Alloy
Powder Start Vel Max Vel
2400 14.0 1515 18.0 1845
IMR4227 18.0 1683 21.0 2159
IMR4198 26.0 1858 32.0 2272

Accuracy Load: IMR4198 26.0 1858 fps

(*) indicates compressed load.
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Old January 13, 2017, 11:46 PM   #9
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"Dunno why I thought it was a good idea. Let me fix that."

If you know it is BAD DATA, why "fix it"?

Much smarter and SAFER to correct the original post or to delete it or some moron will try using it!

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Old January 14, 2017, 01:43 AM   #10
tahunua001
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probably your best bets are going to be h4895 and IMR4064, those are jack of all trades rifle powders, I use them in everything from 6.5 grendel to 30-06.
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Old January 14, 2017, 01:22 PM   #11
T. O'Heir
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"...If you know it is BAD DATA, why "fix it"?..." Isn't "BAD DATA" , grasshopper. It's the wrong data. It's for 7.7 Jap.
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Old January 14, 2017, 04:05 PM   #12
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My 260 likes 4064 under 100 gr Nosler BTs and R17 under 120 gr Nosler BTs, both near max loads (Nosler published max loads). I used 4064 under the 120's in my first 260 and it shot great. I went to R17 for max velocity.

For your situation, I'd sure try IMR 4064.
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Old January 14, 2017, 10:24 PM   #13
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I like 4064 under 100gr Partitions and RL-19 for 120-129s in my 260. Best velocity in Hornady 9 for the Arisaka is 4064.
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Old January 15, 2017, 02:56 AM   #14
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"Isn't "BAD DATA".... It's the wrong data. It's for 7.7 Jap."

Play your silly word game, any way you look at it the data you supplied is DANGEROUS since the question was about the 6.5 Jap NOT the 7.7 Jap...

It would be stupid not to DELETE or CORRECT...

T.
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Old January 15, 2017, 08:31 AM   #15
Mike Irwin
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As Jimbob notes, IMR 4064.

I used 4064 exclusively to load .243 Win., 6.5 Arisaka, .300 Savage, and .30-06 for years.
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Old January 15, 2017, 12:35 PM   #16
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I have titled the posts to clarify.

I know political correctness is a bother and for WWII generation the term "Jap" is second nature, but today it is considered racially insensitive along the lines of you-know-what, so please spell out Japanese or use Arisaka before someone orchestrates some kind of s-storm of complaints.
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