88 TMK Loading Thread

[The Guide]

Curious. I want another fast 22 since I sold my 22-250. Learning towards an ARC. Will the 22 ARC velocities with the 88TMK get me to 2900 FPS at 500’ elevation on an 18-20” barrel?

I am looking for something with less than 4” of drop out to 300 yards to build another thermal rig. Bolt gun for certain.

Based on my experience with the 22 ARC and the 88 ELDM in a couple of 22" rifles, you would be pushed to the upper edge of pressure taking an 88 to 2900 fps. With an 18 or 20 inch barrel you'll be more likely to see 2700 to 2800 for top speeds with the 88 grain bullets.

Jay

 

[nm.otter]

This came from their website before the 12th Edition dropped.

 

[Thegman]

Curious. I want another fast 22 since I sold my 22-250. Learning towards an ARC. Will the 22 ARC velocities with the 88TMK get me to 2900 FPS at 500’ elevation on an 18-20” barrel?

I am looking for something with less than 4” of drop out to 300 yards to build another thermal rig. Bolt gun for certain.

While @The Guide is probably correct above , it might be worth trying; you might get closer than one might think.

These 88TMKs seem to be giving some unexpected results (like shooting well in multiple 1 in 8 barrels at this point).

One thing I seem to notice, as did:

Post in thread '88 TMK Loading Thread '

Friday at 6:52 PM

For craps and giggles I loaded up a bunch of these 88s in both Nas3 and unfired Starline .223 cases, and shot them both out of a factory Tikka .223 18” barrel 1/8 twist and a 16” factory .223 barrel 1/8 twist. The 18” tube has 2-3k rounds down it and I hit lands at 2.49” COAL and the 16” tube has 2-3 hundred rounds down it, hitting lands at 2.45” COAL. I loaded the rounds to 2.43” COAL in both cases with my standard 77 TMK load, 23.6 XBR 8208, CCi 450 primers. Yes, that’s spicy for the Starline brass with this bullet, but other than slight primer cratering, which I see periodically on my...

• FB Trout

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...is that the 88TMKs don't seem to be showing pressure as soon as I would expect. I've also gone up to some of my 77TMK level powder charges with Leverevolution, AA2520, SW Tactical and close with couple other powders, with no apparent pressure problems. Velocity is ~ 70 - 100 fps less than with the 77TMK, but no pressure signs of concern . I've yet to see even a cratered primer or max brass expansion relative to other loads I've run with 73 - 77 grain bullets.

The 88TMK seems to be an unusual bullet.

 

[B_Reynolds_AK]

FIFY

The 88TMK seems to be a unusual Magic bullet.

 

[The Guide]

While @The Guide is probably correct above , it might be worth trying; you might get closer than one might think.

These 88TMKs seem to be giving some unexpected results (like shooting well in multiple 1 in 8 barrels at this point).

One thing I seem to notice, as did:

Post in thread '88 TMK Loading Thread '

Friday at 6:52 PM

For craps and giggles I loaded up a bunch of these 88s in both Nas3 and unfired Starline .223 cases, and shot them both out of a factory Tikka .223 18” barrel 1/8 twist and a 16” factory .223 barrel 1/8 twist. The 18” tube has 2-3k rounds down it and I hit lands at 2.49” COAL and the 16” tube has 2-3 hundred rounds down it, hitting lands at 2.45” COAL. I loaded the rounds to 2.43” COAL in both cases with my standard 77 TMK load, 23.6 XBR 8208, CCi 450 primers. Yes, that’s spicy for the Starline brass with this bullet, but other than slight primer cratering, which I see periodically on my...

• FB Trout

• 

...is that the 88TMKs don't seem to be showing pressure as soon as I would expect. I've also gone up to some of my 77TMK level powder charges with Leverevolution, AA2520, SW Tactical and close with couple other powders, with no apparent pressure problems. Velocity is ~ 70 - 100 fps less than with the 77TMK, but no pressure signs of concern . I've yet to see even a cratered primer or max brass expansion relative to other loads I've run with 73 - 77 grain bullets.

The 88TMK seems to be an unusual bullet.

I hope I'm wrong and the 88 TMK will make the 22 ARC the go to for fastish long life heavy 22 caliber bullets but if not, I had 2 Tikka barrels made in 22 GT. I'm hoping to run 2950 to 3000 with the 88's from the 22 GT and bridge the gap between 22 ARC and 22CM.

Jay

 

[Jake Leibke]

Curious. I want another fast 22 since I sold my 22-250. Learning towards an ARC. Will the 22 ARC velocities with the 88TMK get me to 2900 FPS at 500’ elevation on an 18-20” barrel?

I am looking for something with less than 4” of drop out to 300 yards to build another thermal rig. Bolt gun for certain.

I’m at 1800’ elevation. Getting over 2900 out of my 18” 22 arc boot gun, with both cfe223 and LVR. See post #2.


Sent from my iPhone using Tapatalk

 

[Julius K]

At less than 1000’ of elevation here. Is it a waste of money to buy some 88 tmk to try in my 1:8 tikka 223?

 

[nm.otter]

Getting over 2900 out of my 18” 22 arc boot gun, with both cfe223 and LVR. See post #2.

This is what made me think seriously about .22 ARC -- which piqued my interest in the Sako 90 XS action. Here's a shot from Jake @EuroOptic of an XS mag holding factory .22 ARC 80 ELD-X loads:

 

[mtnbound]

At less than 1000’ of elevation here. Is it a waste of money to buy some 88 tmk to try in my 1:8 tikka 223?

I would say give them a try. I have shot them with a factory Tikka 8-twist, from a DA of -500 to +2000, so far, and have not been disappointed. I think Sierra knocked this one out of the park.

 

[FB Trout]

I would say give them a try. I have shot them with a factory Tikka 8-twist, from a DA of -500 to +2000, so far, and have not been disappointed. I think Sierra knocked this one out of the park.

I agree, I’d give them a shot out of the Tikka barrel. One thing that I’m loving is that at 2700 fps or so, the quick drops line up almost perfectly to 675 yards or so. For me, I don’t think I’m going to even push them faster, as that makes drops very simple. It really is a magical bullet! Can’t wait to see on game results this fall.

 

[mtnbound]

I agree, I’d give them a shot out of the Tikka barrel. One thing that I’m loving is that at 2700 fps or so, the quick drops line up almost perfectly to 675 yards or so. For me, I don’t think I’m going to even push them faster, as that makes drops very simple. It really is a magical bullet! Can’t wait to see on game results this fall.

I agree, the 88TMK has been stupid easy to find accurate loads, and yes, they line up nicely with QD. I see no need to run them any faster than 2700fps in my 223.