.22 Creed / 88 ELD-M load data

[FCCDerek]

What barrel twist are you using? I was planning on running the 88 eldm and then last night I watched Ultimate Reloader talk about how his 1-8 twist was not spinning the 88 enough to give tight groups.

I've known some people to get away with a 1-8" twist with the 88's, but they had longer barrels and were pushing them fast. I've got an 18" 1-7" twist and it does exceptionally well with the 88's.

 

[Lawnboi]

What barrel twist are you using? I was planning on running the 88 eldm and then last night I watched Ultimate Reloader talk about how his 1-8 twist was not spinning the 88 enough to give tight groups.

Hornady 4dof is free and will tell you the stability in the app specific to Hornady tipped bullets.

I’d run the lowest elevation and coldest conditions you foresee and see what it is.

 

[Formidilosus]

I’ve seen and shot a bunch of tikka 1-8” twist barrels with 88gr ELD-M’s- all have been fine. Though only a few at 0ft DA, but I am aware of a lot that are shot in very low DA’s.

 

[Fmuguira]

Not a CM but my 22-250 AI very similar case capacity. I shoot 40.5 grs R26 with 88 Eldm, 2.620” oal. Doing 3150-3175 fps out of 26.5” barrel.

So I d say start at 40 or so and work towards 42 grs. Since it’s an overbore cartridge you can use some pretty slow powders in the R26, H1000 range. 7828 sc has done pretty well for us with 75-80 Eldms…. Around 41-42 grs.

Work up, good luck.

 

[waspocrew]

RL-23 and 88s for me. Also - 1:8 twist is totally fine for the 88s.

 

[ID_Matt]

RL-23 and 88s for me. Also - 1:8 twist is totally fine for the 88s.

How much RL23 and what speed?

 

[waspocrew]

How much RL23 and what speed?

40.3 gr for 3150 fps out of my 22” barrel. Probably have room to go in there, but they shot so well I called it good.

 

[Grizzle]

Any chance of reviving this thread? Some proven combos including coal and freebore lengths where possible would be super helpful as I'm getting my barrel chamberd and having some trouble settling on a dummy round to send. Thanks

 

[grappling_hook]

ttt

 

[Loco4dux]

@Muley Buck

 

[Mountain_Life]

If you pick your way through the 22 Creed thread you'll find a lot of posts regarding this info.

 

[swavescatter]

Anyone try Retumbo?

 

[swavescatter]

Well I guess I'll guinea pig that. Only 99 rounds down range on this new Proof 16.5" barrel chambered by Manzella. Here's the next 24 rounds:



I think there's still some left on the table, but getting to 2700 might be pushing it. I'd like to be seeing 2900 fps out of these 88's and my 16.5" barrel - is that asking too much?

1:7 twist barrel throated long for the 88's. I think I'll try H1000 next before H4350.

 

[Rugger7622]

SB6.5 has been good me from 77g, 80, 85.5g and 88's. Loaded H4350 as well, but SB6.5 shot as well and it's much cheaper.

 

[swavescatter]

Couldn't help myself. New barrel so inherent accuracy is unknown. Don't think I'll pursue anything more with Retumbo though. No pressure signs but I'm about 47thou off the lands with the 88's seated at the optimal depth.

H1000 up next...

 

[swavescatter]

Accuracy is much better with H1000, as well as velocity.

 

[swavescatter]

Based on these results, I think the answer is to load up 10 at 44.5 grains and see if it stays near 1 MOA or lower, and if so go hunt?

2915 fps seems pretty decent - carries 1800fps out past 700 yds.

 

[waspocrew]

Based on these results, I think the answer is to load up 10 at 44.5 grains and see if it stays near 1 MOA or lower, and if so go hunt?

2915 fps seems pretty decent - carries 1800fps out past 700 yds.

View attachment 906355

Doesn’t hurt to try - load it up and see how it’ll do with 10 shots!

 

[SouthPaw]

44g of H1000 was my load in the 22cm with 88s. It did 3060fps from a 20" barrel once it sped up after ~140 rounds, and was 1ish moa for 10 shot groups. I hunted with that load for a couple years. Keep in mind 43g is hornadys book max so up above 44g could be flirting with big pressure, although you have the long throat.

 

[swavescatter]

44g of H1000 was my load in the 22cm with 88s. It did 3060fps from a 20" barrel once it sped up after ~140 rounds, and was 1ish moa for 10 shot groups. I hunted with that load for a couple years. Keep in mind 43g is hornadys book max so up above 44g could be flirting with big pressure, although you have the long throat.

Yeah I saw no pressure signs at all, and read someone’s quick load analysis saying that it’s almost impossible to hit max pressure due to case fill with H1000. Assuming no dumb stuff like jam or crimping…

My Proof is a 7 twist also so that might slow it down a bit. Really wish they offered a 7.5 twist