ACE barrels out of Spokane WA gets blanks out pretty quickly. I've saw groups from a few their 22 cal blanks, on a gt other a creed that were very good. They were 219 bore 6 groove barrels. They can do any twist you want within reason.
22GT load data
- Thread starter Krob95
- Start date
I know, old post. But do you know how this powder behaved for your buddy with temperature changes?
And what kinda barell life are you guys seeing with the 22GT?
SWLR is an excellent powder. Very temp stable.
If I could get my hands on it I would be running it in my 22 Dasher instead of H4350. Similar to RE16.
It's a great powder that nestles right in between Varget and H4350.
Barrel life is great. 2500 to 3000 rounds is very common with a good load under 3100fps.
Glad to read this. I bought 8 lbs on a whim but haven’t seen much load data for it with 22GT.
New to the caliber, throwing in what I’ve worked up for my first load
88 ELDM
Alpha 22 GT brass
450 CCI
34.14 gr H4350
Gives me 3063 FPS with an SD of 2.9
88 ELDM
Alpha 22 GT brass
450 CCI
34.14 gr H4350
Gives me 3063 FPS with an SD of 2.9
Dang that's a fast barrel or a very fast lot of H4350, I needed 36gr to get up to 3080.
I think it’s both. But I live in a desert climate and dehydrate my powders and usually that it speeds things up quite a bit.
I'm running 80 eldm at 3180 in a 22" with 33.2gr N150. The 88s and 90 atips have s mile of bearing surface compared to the 80s and 85.5 that I've tested. 22gt is a great lil case! So little recoil and great ballistics.
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26" 1:7.5 twist ordered from Crownridgebarrelworks Anthony has sendero barrels in stock so i ran with it. I have alot of Shooters World Long Rlifle. And plan on using my 80gr and 88gr seconds first and then running 90gr smk or 85.5. How is Shooters World doing in the 22 GT?
Cool does it work with all bullets and i jabe seen a few using H4831SC
His turn around time is amazing. So is his barrel work.
Just posting my findings with our new 22gt build.
I’m running a 20” proof .118” bore 1:7 twist barrel on my KDE Customs m7 build. I chambered the barrel with a over sized reamer, by .002” in body diameter with a .169” fb. I increased head space by .007” to increase body length and shorten neck.
I’m working on load development using alpha brass, berger 85.5s, gm205m, and IMR 4831.
Built my own bushing in the seater die and bushings and expanded in the sizing die, running .003” neck tension.
I started with 33g and worked up to 40g.
First 33g-38g were .010 jump to lands, one round each. First rounds through the barrel.
80*f day
33g. 2640
34g. 2757
35g. 2847
36g. 2909
37g. 2971
38g. 3070
Below are .020 jump to lands, two rounds each.
85-90*f day
38g. 3066,3037
39g. 3143,3137
40g 3200,3204
Took 39g and loading three rounds each at different jump distances. Will shoot them in a ladder test sequence.
.020
.030
.040
.050
Hope to shoot this string in the morning. Will post results once finished.
I’m running a 20” proof .118” bore 1:7 twist barrel on my KDE Customs m7 build. I chambered the barrel with a over sized reamer, by .002” in body diameter with a .169” fb. I increased head space by .007” to increase body length and shorten neck.
I’m working on load development using alpha brass, berger 85.5s, gm205m, and IMR 4831.
Built my own bushing in the seater die and bushings and expanded in the sizing die, running .003” neck tension.
I started with 33g and worked up to 40g.
First 33g-38g were .010 jump to lands, one round each. First rounds through the barrel.
80*f day
33g. 2640
34g. 2757
35g. 2847
36g. 2909
37g. 2971
38g. 3070
Below are .020 jump to lands, two rounds each.
85-90*f day
38g. 3066,3037
39g. 3143,3137
40g 3200,3204
Took 39g and loading three rounds each at different jump distances. Will shoot them in a ladder test sequence.
.020
.030
.040
.050
Hope to shoot this string in the morning. Will post results once finished.
76*f this morning, felt a little unstable, hadn’t had enough coffee before shooting. .020” was definitely the best but .050” may be decent too if the flyer was me.
I didn’t put the magneto speed on barrel while checking bullet jump.
My velocity with a .020” jump was 3140 fps.
I’m loading some virgin brass up today at .015” jump and I’ll get a velocity on them and post it.
The Garmin kicks ass. Hopefully you have a chance to give up a try.
Thanks. That was just the right amount of coffee. Now I have to do it again lol.
I have noticed my groups leave a lot to be desired with any charge below about 35gr of h4350. 35 and 35.6 have produced a couple .5” 5 shots groups. It would appear most using h4350 are using ~35-37ish grains which is 1.5gr+ above the published Hodgdon data. I know lots are not seeing any pressure signs but what’s the deal with most having to shoot that much over book max?
I will say my barrel (suppressed 20” 7.5tw .219 bore) seems to be a little on the faster side given that it’s giving me about 3000fps with 34.6gr of h4350 with 88 eld’s and cci450s. Just recently got some alpha brass I’m playing with, most my info is coming from hornady brass up to this point.
Again I’m very new to this little round and so far have really liked it but it’s just got me curious.
I will say my barrel (suppressed 20” 7.5tw .219 bore) seems to be a little on the faster side given that it’s giving me about 3000fps with 34.6gr of h4350 with 88 eld’s and cci450s. Just recently got some alpha brass I’m playing with, most my info is coming from hornady brass up to this point.
Again I’m very new to this little round and so far have really liked it but it’s just got me curious.
Work up slow and look for pressure signs to tell you when. I’ve never stopped where manuals tell me to and have lived to tell the tale.
Got to shoot a few rounds today with a Garmin by my side. Not mine, but definitely getting one asap.
With virgin brass 5 shots averaging 3150 fps.
With a 320 yd zero.
At 200yds hold is 2moa down, 500yds hold is 4moa up.
Shot one round at 500 corrected for wind and shot two more. Those two were under .5moa. Went to 200 and shot two, they cut each other in a .092moa.
Hoping to get out this weekend and shoot 3 shot group at 200yd, 500yd, 800yd, and 1000yds.
So far it’s looking promising.
Ps now 38 rds down the barrel.
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All the loading manuals and data out in the world are just a starting point. The maximum load in all firearms will differ from one gun to the next. From lot to lot, for bullets, powder, barrels etc. So many variables that a book could never have a perfect load for all of them. All while the books normally stay on the safe side of pressures. The older manuals have much hotter loads then the newer printed ones. Probably for liability reasons, everyone being sue happy now days.
All loads should be started low and worked up while watching for pressure signs, working up to find the maximum load in your particular firearm.
All loads should be started low and worked up while watching for pressure signs, working up to find the maximum load in your particular firearm.
I normally start load development with .020” jump for all of the rifle cartridges.
For y'all with 22GT what seating die are you using?
I have a RCBS Matchmaster 6gt die set for sizing with a .249 bushing. but was wondering if i'll be ok with using the 6gt seating die or will have to buy a separate seating die?
I have a RCBS Matchmaster 6gt die set for sizing with a .249 bushing. but was wondering if i'll be ok with using the 6gt seating die or will have to buy a separate seating die?
SAC Ultimate Micrometer seating die.
I use a LE Wilson SS FL Bushing 6GT die with .247 bushing then 21st Century mandrel for sizing.
I just use a Forster seating die with the micrometer on top. A custom honed Forster FL die and Sinclair mandrel round it out.
The Matchmaster 6GT seater works fine, but you have to raise the ram a little to ensure the bullet falls into the case mouth if using the bullet window.
John
So, I loaded up five 68gr Hammer HHTs for the .22GT. One charge each from 38.4 to 40gr H4350 in .4gr increments, in order to find max pressure. Only made it through the first three rounds before getting ejector marks. But they are smokin’ fast and those three rounds with three different charges went into about .25”.
John
John
Good to know. I have some of those 68 HHT’s on the way, plus some of the 63 grain Absolutes. Wasn’t sure which powder to use for the Absolute Hammers.
I shot the 73gr absolutes in my 22cm few years ago, case was topped off with rl26, and used my vibrating media tumbler to settle the powder to make room for seating. They shot surprisingly well at 3750fps.
Hondo….. wondering if you have tried Vargert or 8208 with those 68gr hammers? Been looking at the same load for my 22GT, interested how your development is going.
I have some Varget and N150 but haven’t tried them with the 68gr HHTs yet. When shooting 77gr TMKs, Varget pressured out at a significantly lower velocity than H4350.
John
I've got a wild hair up my ass to try something.
Ramshot Grand + 95 SMK
Going to use Ramshot Magnum reduced to start. The Grand is similar burn rate, but more energy.
Ramshot Grand + 95 SMK
Going to use Ramshot Magnum reduced to start. The Grand is similar burn rate, but more energy.
Okay a little help here. I picked up a 22GT barrel from the hide. 7 twist, and .120 freebore... is that right? I feel like the freebore is much shorter than the .169 I have been reading. Any recommendations on load development? I have a ton of H4350 and 88eldm. Dont mine buying new bullets but would prefer to stick with 4350 if possible.
Okay I have virgin alpha brass and some CCI 450's. I like speed, but if an extra 50 FPS is going to burn my barrel out 20% faster I'd rather not? What kind of velocities are you getting with the 85's? I've got a 22" barrel
I know some have had good results with H4350 but I had way better results with n550 and imr4166
Anyone done anymore work with the 68gr class of bullets. I saw the one guy that used H4350 with pretty decent results. Wondering if anyone has tried anything else as far as powder goes.
I'm using a 69/75/77/80gr Rexem and I will be using 2206H for the lighters and maybe varget (2208) for the 80's. Contrary to a lot of popular belief the 2206H commonly hold EXTREME SD's and ES's in the 69 grain range with 223/GT/BR and even the creedmoor. I got my 20 shot string down to an ES of 4 with a 69 and 2206H in my 223. Still spinning up my 22 GT now and I'll report back how it goes. But I have a bit of a love affair with 06H at the moment.
Sure thing mate!
Yeah nah yeah.. so...
So when out yonder beyond the black stump and gettin up the dogs with the stick.
My powders of choice at the moment in many of those wildcats is 2206H (H4895) and 2208 (Varget.)
I was running 2209 (H4350) in my 22 Creed for ages with a 75 but found I just got near as good velocity but fantastic ES/SD's and accuracy using H4895. Same as in my 22-243 and 22-243AI. My 22 GT will be here in about 2 weeks and I'll be right on it.
Rexem is an Aussie brand of projectile manufacture that are just deadly.
So blimey mate hopefully that clears it up for any flammin' galahs on here.
