88 TMK Loading Thread

[NoDakhunter]

Does anyone have a picture of the Sierra recommendation chart @Nine Banger is referencing?

 

[Nine Banger]

Does anyone have a picture of the Sierra recommendation chart @Nine Banger is referencing?

It's on one of the threads maybe 22 Creedmoor thread.

 

[ChrisAU]

@Nine Banger what cartridge? 223 Rem?

 

[rafiki]

it was this one. forget who, but someone posted that the sierra rep said to use the 90gr MK chart for now.

 

[Nine Banger]

@Nine Banger what cartridge? 223 Rem?

22 Creed.

I'll edit.

 

[ChrisAU]

22 Creed.

I'll edit.

Ah seemed slow for an 18" with an 88gr pill?

I'm thinking about tossing my 16.5 22CM 1:8 for a 16.5 22GT 1:7, but I want to get atleast 2800 or so.

 

[Bluumoon]

Hogdon 90gr bullet (not specified) for 22CM

 

[amassi]

Hogdon 90gr bullet (not specified) for 22CMView attachment 1036209

90 g a-tip


Sent from my iPhone using Tapatalk

 

[Formidilosus]

22 Creedmoor.

I had to put a barrel back on and I forgot it was 1:7.5 and didn’t notice that until it was torqued and out of the vise. I’m at the sea-est of the levels so I figured let’s see if it’ll do it. (I have an 18” 1:7 too)

It's almost summer here. If you haven't experienced SEUSA yellow pine pollen its something else. I'm wearing my Duckworth Vapor Hoody today too.

View attachment 1036114View attachment 1036115View attachment 1036118

18” PBB barrel 1:7.5” twist 2.685” OAL (lands were 2.710ish)

DA: -308ft

View attachment 1036119View attachment 1036120

45gr Staball HD 2693fps. This was listed as a "Max Load" from that chart someone posted that Sierra said we should follow. I need 2775 to get quick drop at 0 elevation but man look at that group.

View attachment 1036117

View attachment 1036116


I'm back on that crappy brass I've been nursing and had a case head failure on the first round and partial on the second.

I'm tempted to stuff a few more grains in there and tap it down or get crunch to see if I can get 2775 but I really want to cut this barrel down to 14" so unfortunately another swing and a miss for Staball HD around here.

Told you they shoot.


The 88gr ELD-M is dead.

 

[Nine Banger]

Ah seemed slow for an 18" with an 88gr pill?

I'm thinking about tossing my 16.5 22CM 1:8 for a 16.5 22GT 1:7, but I want to get atleast 2800 or so.

I think the numbers we are using from that chart are low.

2800 seems attainable.

 

[KyleR1985]

Told you they shoot.


The 88gr ELD-M is dead.

Did you guys kill with them on those culling trips? I couldn’t find any 88 reports

 

[Formidilosus]

Did you guys kill with them on those culling trips? I couldn’t find any 88 reports

I have. Limited, but produced very good wounds. The 22CM and other fast .22’s have needed a proper bullet, and they have it now.

 

[KyleR1985]

I have. Limited, but produced very good wounds. The 22CM and other fast .22’s have needed a proper bullet, and they have it now.

For deer - between the 88 and 95, 2600-2800 muzzle velocity, inside 500 yards, do you have a preference? Or pick your poison?

 

[Tail_Hunter]

What velocity should a top load in a 16" to 18" 22CM reach? I've got RS Grand, RL26, H1000, N555, Retumbo, IMR7977, H4831sc, RS Hunter and some 88's are waiting for me at home.

 

[Formidilosus]

For deer - between the 88 and 95, 2600-2800 muzzle velocity, inside 500 yards, do you have a preference? Or pick your poison?

95gr 6mm?

Eh. Not a huge difference, but the 95’s are pickier than I prefer, the 88’s so far are not. Terminally it doesn’t matter.

 

[Bluumoon]

What velocity should a top load in a 16" to 18" 22CM reach? I've got RS Grand, RL26, H1000, N555, Retumbo, IMR7977, H4831sc, RS Hunter and some 88's are waiting for me at home.

I’m seeing 3070fps w 18” and 45.5gr Grand as posted above.

 

[swavescatter]

I got just over 3,000 fps out of my 16.5" Proof 7 twist with long throat. H4831SC seated optimally. I'll probably start there. 3,000 fps with H1000 was showing pressure signs.

 

[Nine Banger]

H1000:

22creed
2.685"
44gr H1000
18" PBB
2770fps
My Quick Drop load.

I fine tuned with my crap brass and then put it in nice factory brass as a confirmer.