GO TO LOAD 6 X 45

Remington Cases,debur the flash hole and re size.Uniform primer pocket and try 27.0 grs. of H335. From There U can use # 1500 Sierra HP OR #22411 Hornady 58 gr Vmax or sierra #1502 Sierra blitz kings.I use CCI 400 primers but had a custom 1-13 in twist barrel on my 6X45 so you will want to watch the CCI 400 primers for Preasure signs,Use book COL,and get 1/2" to 3/4" at 200 yds if no wind.GOOD LUCK MAY WANT TO WORK UP LOADS SLOWLY.If primers show to much pressure I would try Federal 205M's OR if they ever make them again try the CCI BR4's
 
I've got an old friend that turned me onto the 6 x 45 that uses H-335, and gets good results.

When I first started with the 6 x 45 I tried AA-2015-BR powder and had such good results I have never switched. I use the AA-2015 all the way from 60 grain bullets, up to the 85 grain partition. I don't think you will find anyone that has tried AA-2015 in a 6 x 45 that didn't have good results.
 
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Just tested some loads this past weekend. The winner was 25.5gr TAC, LC Brass, CCI 400 primer, 65gr VMax seated out as far as the mag would allow (2.260). 5shots measured right at .500.
 
Originally Posted By: GregWStormking,

Do you have velocity numbers for that TAC load?

Thanks..

I don't. I can only estimate. TAC doesn't have data for the 65gr so I was using the 68gr data (223). 25.5 was listed as max (last year's data - now listed @ 24.1??) for the 68gr and SHOULD run about 3000fps from a 24" bbl. I'm estimating this load will run around 3100. The load showed no signs of pressure. A chronograph is on my wish list.
 
I only ask I got this from Johan, their load guy. I didn't try TAC based on his recommendations below and potential velocities and compression issues. I love TAC however...



Greg,

TAC will be too slow burning requiring even more compression than the faster X-Terminator below.

You can load to the same loads as for X-terminator but the velocities will be 5 to 7% lower.

Caliber: 6mm x 45 (6mm-223Rem)

Barrel length: 20”

For 16” barrel reduce velocity by 5% to 6% (ca 120 -150 Fps).

For 24” barrel increase velocity 3% to 4% (ca 90 -110 Fps)

Powder: Ramshot --- X-Terminator.

Bullet weight: 60 grains.

Start load: 26.1 grains (2800 – 2900 ft/p/sec)

Maximum load: 29.0 grains (3075 – 3175 Ft/p/sec). Full case/compressed.

Bullet weight: 70 grains.

Start load: 25.3 grains (2650 – 2750 ft/p/sec)

Maximum load: 28.0 grains (2900 – 3000 Ft/p/sec). Full case/compressed.

Bullet weight: 75-80 grains.

Start load: 24.3 grains (2550 – 2650 ft/p/sec)

Maximum load: 27.0 grains (2850 – 2950 Ft/p/sec). Full case/compressed.

Bullet weight: 85 grains.

Start load: 23.4 grains (2500 – 2600 ft/p/sec)

Maximum load: 26.0 grains (2700 – 2800 Ft/p/sec). Full case/compressed.

 
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Originally Posted By: GregWI only ask I got this from Johan, their load guy. I didn't try TAC based on his recommendations below and potential velocities and compression issues. I love TAC however...



Greg,

TAC will be too slow burning requiring even more compression than the faster X-Terminator below.

You can load to the same loads as for X-terminator but the velocities will be 5 to 7% lower.

Caliber: 6mm x 45 (6mm-223Rem)

Barrel length: 20”

For 16” barrel reduce velocity by 5% to 6% (ca 120 -150 Fps).

For 24” barrel increase velocity 3% to 4% (ca 90 -110 Fps)

Powder: Ramshot --- X-Terminator.

Bullet weight: 60 grains.

Start load: 26.1 grains (2800 – 2900 ft/p/sec)

Maximum load: 29.0 grains (3075 – 3175 Ft/p/sec). Full case/compressed.

Bullet weight: 70 grains.

Start load: 25.3 grains (2650 – 2750 ft/p/sec)

Maximum load: 28.0 grains (2900 – 3000 Ft/p/sec). Full case/compressed.

Bullet weight: 75-80 grains.

Start load: 24.3 grains (2550 – 2650 ft/p/sec)

Maximum load: 27.0 grains (2850 – 2950 Ft/p/sec). Full case/compressed.

Bullet weight: 85 grains.

Start load: 23.4 grains (2500 – 2600 ft/p/sec)

Maximum load: 26.0 grains (2700 – 2800 Ft/p/sec). Full case/compressed.



Greg,

I'm a little confused. Thier load guy was saying that max loads w/ Xterm would be compressed and moreso w/ TAC? 25.5 gr of Tac in the 223 case is about 75% full. I simply used their data for the .223 service rifle (68gr bullet). ALL their data for service rifle (24" 1:7 & 1:9) are w/ TAC powder starting w/ a 68gr bullet. I certainly shoots well in my rifle and showed no signs of pressure. And this was using older load data. The most recent data shows 24.1gr max load for 68gr w/ TAC. Something's not adding up here. Is it safe to assume that whether you're pushing a 65gr .224 bullet or a 65gr .243 bullet from the exact same cartridge, the min and max loads should be the same?
 
It is not at all safe to assume that....

You've got me wondering now...

I'm going to weigh a case full of TAC right now and see how much TAC I can put into it to reach the bottom of the case neck...
 
I can get about 28.5 grains TAC in my once fired R-P case. This is measured until the case neck...

Think I'm going to email Johan...
 
To follow up, 25.5 of TAC will fill up way more than 75% of the case I'm afraid. I was only able to get 28.5 grains TAC in the case up to the neck. I stopped at the neck as this is about all the case capacity you can use loading to magazine length in an AR platform, which I think you are. In fact, loading a 75 grain bullet to a OAL of 2.25", I probably can't get 28.5 grains TAC in the case...

Do not interchange .223 and 6x45 data with similar bullet weights.

Another thing, based on the data from Johan, which is probably somewhat accurate as far as velocity, and not sure what your bbl length is, I'd feel safe in assuming your load of 25.5 TAC with a 65 is way under a 3100 MV unless you have a really long barrel. Based on the velocity numbers above from Johan, if the starting load of 26.1 of TAC with a 60 grainer yields only 2800-2900, you using 0.6 grain less with a heavier bullet will be even less than these figures, probably 2700-2800 also dependent on bbl length as these numbers are for a 20"er...

That said, with a Vmax that has proven to be a reliably expanding bullet way down on the velocity level, killing is a non-issue with the mild velocity loads that i think you're running with your tack driving load above...
 
I would think that the larger bore diameter would show less pressure with equal bullet weights and powder charges.I agree with GregW that your velocity is probrably way slower than you interpolated.I am out of town so I do not have accesss to my data but I have speeds with the XTerminator and maybe Tac as well.
 
Originally Posted By: venaticI would think that the larger bore diameter would show less pressure with equal bullet weights and powder charges.I agree with GregW that your velocity is probrably way slower than you interpolated.I am out of town so I do not have accesss to my data but I have speeds with the XTerminator and maybe Tac as well.

This was my rationale in using the .223 data for a "starting point". The same charge, same bullet weight in a tube w/ greater volume, physics says it should create lower pressures. My previous query would have been more appropriately stated "same bullet weight, similiar min/max's. If anything using .223 data for the 6X45, you may run into issues at the low end. My groups in testing this load probably support this as I saw vertical stringing in the lower charges. I don't think I was doing anything incorrectly as I was using this as a starting point and watched carefully for signs of pressure. I would not argue that the velocities may be well below what I've guestimated. I very well may be at the lower "node" of this load and my find another very tight grouping another 1-1.5gr above this charge. Nonetheless, the target doesn't lie. I have a very accurate load (at least for calling ranges) that shows no signs of pressure. Although I don't normally push to signs of pressure, I may with this load since there is not published data just to see if there is a "node" at a higher velocity.
 
Originally Posted By: GregWI'd keep pushing up and see what happens for both of us...grin...

Wish someone had quickload...

Per Quick Load: (6X45, 22" bbl, 65gr Vmax, 70 degree temp)

100% case capacity would be at 27.4gr of TAC

25.5gr (93.1% of case capacity) of TAC should yield 2839@ the muzzle,peak pressure @ 38380psi.

Max load calc's at 28.4gr (3.7% compressed charge) yielding 3182 @ the muzzle and a peak pressure of 54645psi.

It calc's Xterm at a max load of 26.7gr, yielding 3190 @ the muzzle, 97.5% of case capacity, and a max pressure of 54963psi.
 
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