Right? Honestly this little cartridge impresses the hell out of me. 0.4 more mil wind hold in a 10mph crosser at 1000 yards versus my 147gr ELDM load in 6.5CM, for less component cost and vastly less recoil.
Fun toy for sure.
.22 br
- Thread starter Dai Bando
- Start date
Fun toy for sure.
There is absolutely no felt recoil in my rifle. It's a Kelbly Prometheus Left hand Short action with an Osprey barrel from PVA that is the proof heavy barrel. It's 1" at the muzzle. Thing is heavy as hell.
Doc
On the burn chart Ramshot TAC is about equal to H4895 and if you have a reloading manual or search the interwebs.....
I did, shows a max charge of 25.8gr per Sierra. However when I run that through p-max, it shows it as a very low charge and pressure.
I just wanted to know if anyone actually has used this powder for a 73-77gr bullets.
Doc
So today I went out and shot my load with TAC and a 75gr eldM. Just touching the lands. Cci450 primer and Lapua 2x fired brass with 2 thousands neck tension.
Shot from 24.5gr to 29.8grs
Sierra manual had max load at 25.8gr for a 77gr. Bullet.
No issues whatsoever and zero pressure signs.
Good day over all.
Doc
Shot from 24.5gr to 29.8grs
Sierra manual had max load at 25.8gr for a 77gr. Bullet.
No issues whatsoever and zero pressure signs.
Good day over all.
Doc
I love 75ELD’s!
I run them with LVR @ about 3,150 currently.
Took Dad to 1,000 yards with them last week. He had never shot at anything past 250. Had certainly never fired a heavyweight target rifle.
He had a ball!!!
I run them with LVR @ about 3,150 currently.
Took Dad to 1,000 yards with them last week. He had never shot at anything past 250. Had certainly never fired a heavyweight target rifle.
He had a ball!!!
Got a box of 80.5 Bergers to play with.
33.0grn RL16 gave 3126 over the pro chrono. 24” 7” Bartlein w/ a 9” suppressor. Lapua, 450’s.
That speed is right where I think they need to live.
Was thinking about trying a ladder from 32.5-33.5.
Anyone else played with this combo?
33.0grn RL16 gave 3126 over the pro chrono. 24” 7” Bartlein w/ a 9” suppressor. Lapua, 450’s.
That speed is right where I think they need to live.
Was thinking about trying a ladder from 32.5-33.5.
Anyone else played with this combo?
My 22br reamer shipped, 255nk, 130k freebore, 225 freebore diameter. Anyone mess with alpha ocd 6br brass necked down? Lapua is tough to get right now. I don't want to neck turn, and Alpha is usually as thick, or thicker than lapua. I have 1k 85.5s, and 1k 88eldm to play with currently.
I found some lapua. 350pcs 3x fired and 200pcs new. Both my barrels are getting cut soon to my origin, Mullerworks 219 bore 7tw 4r hvy varm, and a hawkhill 219 bore 7tw 4gr comp, both will be finished at 28". This is sad to say, but I'm more excited about this cartridge than any the others I shoot. I have 2k 90gr smk, 2800 88eldm, and around 2200 90 atips. Plenty of bullets to burn both barrels. These will likely be practice rigs as I have a 6gt and a 25cm that get brought to matches. I'll be experimenting with 4166, rl15.5, Varget, H4350 to find the best accuracy.
I run 29.3 15.5 with 85.5 hybrids. 3012 out of my 26”. It’s a .218 bore though.
I'll say that I wish I had a little more FB than the 0.130" I ordered for my reamer. With 0.050" jump, it puts the bottom of the bearing surface veeeery close to the neck/shoulder junction. I wouldn't mind another 0.020-30" in there for peace of mind, for all that we're talking very small amounts.
ETA: 88gr ELD-M in Lapua 6BR brass necked down
ETA: 88gr ELD-M in Lapua 6BR brass necked down
Ive shot 88s out of an 8tw rock creek 22 creed, no issues, but my DA is usually 3-6K season pending, and they were moving 3200+ fps.
Throw them in a calculator, measure bullet length minus the poly tip length, if you're at 1.4 to 1.5 bet you're stable. I can send you 20 in the mail to shoot on paper at 100 then 400, look for keyholes. I will add, most my consistent/accurate shooting rifles rifles have a stabilization of 1.6-1.8 on sg scale.
Just wrapped up..
24" Brux 8tw
80gr Berger Vld
Varget
3135 avg fps sd 6
Gave it 5 @ a hundo
Boxed it up and left
Anybody happen to have data on the spring-back on neck sizing their Lapua 22BR brass? I’m getting what seems like quite a lot: sizing die is 0.247” verified with a pin gauge, neck OD after sizing and no expansion (removed expander ball) is averaging about 0.2506”, so over 3 thou spring-back (or 1.5 thou per side).
I like to try and size mine down to about 3 or 4 thou of tension then use a km expander mandrel to set it back to 2 thou
Do you have any idea what the difference is between your die’s neck size and the OD of your necks coming out of it, with no expansion?
For example, if you’re using a neck bushing, what size is it and what size are your necks (outer diameter) coming out of it?
Awesome. Im sure I’ll be fine with 80’s im hoping it will stabilize the 85’s and 88’s just to try them. My goal is the 75’s or 80’s though.
You know I've never really measured that I usually will use pin gauges to measure the inside of the neck.. also what tool are you using to measure the outside of the neck?
Micrometer with a flat anvil. It’s pretty consistent across cases, and I average the readings taken 90° apart, but they’re consistent too, within generally 0.0002”
So I wonder if what you could be seeing could be the case lube on the neck or the bushing maybe?
I’ll be honest, and a bit blunt. It’d help me if we could focus on the question I asked. It sounds like you haven’t measured what I’m after, and that’s fine; if you happen to take the extra step in your process the next time you resize brass, I’d love to know what you find. Appreciate it!
Ya sorry I understand your question I was just trying to help think of something that could cause that much spring back but I also never check measurement and honestly I don't know how much it would even mean I usually just check a loaded round with a micrometer get that measurement make sure I have 3 or 4 thou chamber clearance and then select a bushing that is 3 or 4 thou less size check the inside with a pin gauge then expand with the mandrel to the final dimension I want
That’s what I did with this setup also, but was getting almost no sensation when running my mandrel after the first firing. Come to find out I’m getting what *seems* like a lot of spring-back, but honestly I never check it on other cartridges so I don’t know what’s normal.
Manzella precision will be shipping both my 22br barrels this week! Excited!
Did you anneal? Taking 6br necking down, then expanding, fireforming, then going to resize has had quite a bit of work hardening. Annealing will help reduce springback if you haven't done so.
Yes, I did, after the first firing. It’s possible I need more flame time, but it would be great if someone else could tell me how much spring-back they’re getting in their process so I can know if my situation is abnormal or not.
Finally get everything assembled. Hawkhill 28" comp coutour 7tw 219 bore, origin action, tt special pro curved, atx chassis, ace brake, gen3 razor in an audere cantilever 1.6" mount. Chamber is a 255nk 130k freebore. Gonna hopefully get that barrel broke in while in wyo with work in coming weeks. Gonna start at 28.0gr Varget with 88eldm and 90smk.
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I have decided that when my new 6x47L Fclass barrel (3rd one) is worn out i am going to go to 22BR for Fclass for the less recoil. I shoot a 6BR as my fun gun for all out accuracy so hoping that the 22BR will be just like it. So i am getting together the stuff to load and next winter i will put my 22BR barrel on my Fclass rifle to break it in and do load development. One thing i have noticed is that some use CCI 450’s. I have always used BR-4’s for my 6 BR with great success.
Do the 450’s really help? I use the 450’s on my 6x47 L loads but it was erratic with BR-4’s
I plan on going with 85.5 bergers and right now based on GRT simulation RL-16
Thanks in advance
David
Do the 450’s really help? I use the 450’s on my 6x47 L loads but it was erratic with BR-4’s
I plan on going with 85.5 bergers and right now based on GRT simulation RL-16
Thanks in advance
David
Finally made it out to shoot the virgin 22br in some wonderful 15mph Wyoming winds rocking my truck, which I was using the tailgate as a rest for bipod and bag.
28.5gr Varget, velocity unknown/es
badly runout lapua necked down brass
Cci 450s
88eldm
Not a group over 3/4" and 40-50k jump shot pretty dang well for an unstable rest. Have another 140 rounds that I'll seat to -45 for rest of break in.
28.5gr Varget, velocity unknown/es
badly runout lapua necked down brass
Cci 450s
88eldm
Not a group over 3/4" and 40-50k jump shot pretty dang well for an unstable rest. Have another 140 rounds that I'll seat to -45 for rest of break in.
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Nice! I did initial break in and fireforming with 28.5gr Varget and 88 ELD with my first 22BR barrel and it was hammering... 2960 out of a 26" SD 7... Tiny groups
Heck yeah! I know I'd shot better from a solid rest. Hopefully conditions are calmer this evening and I can test more at 40, 42.5, 45, 47.5 50 jump maybe set up the labradar as well. Spring thaw is upon us and I never brought a shooting mat to work, so prone isn't going to happen. Truck tailgate is all she's gonna get at the moment.
So my use of the Hornady 223 universal neck sizing die put a lot of runout in the 200x prices new lapua 6br brass upon neck down , and caused a small bulge in the shoulder that's making closing the bolt inconsist. I also have 350 pieces 2-3x fired lapua 6br, these went through a harrels D3 6br die with a 255 bushing to size most the neck down and size the body. Final step was to run through the Hornady neck sizing die to get the remaining neck the bushing missed. These cases have far less runout VS the new brass that was necked down in one pass with Hornady die. Live and learn!
Yea I found annealing my 1x 6BR brass, then running them through my SAC 6BR sizing die with a bush that was halfway between 6BR and 22BR necks, to step it down half way, then I ran them again with my final bushing to size them down the rest, then final step was through my 21st Century mandrel. Everything came out excellent, no issues or bulges and they shot excellent from the get go with virtually no runout.
Made it to the range again, 28.5 varget is running 2950-2980 fps with 88s from my 28" 7tw 219 bore hawkhill. Lil spicier than I thought it be. Shot 38k to 50k jumps in 10 shot groups all groups under 3/4 moa best was half. Once these 200pcs lapua are all formed up, I'll do some powder tuning. I have about 120 on the barrel now, and I'm sure it needs a cleaning and will slow down some. Observed no speed up on this session.
I would guess it might speed up as my 26" Benchmark 1:7.5 with 27.0 grains of Varget pushes a 85.5 at 3,040 and the 88's right around 3,000 fps. In loading OCW i ran it up to 29.1 grains of Varget before seeing any pressure
That's abnormally fast for a 26" with 27gr varget.
I've got 3 different 22BR barrels now, 2 are 28" (1 .218 and 1 .219 ) and 1 .219 26"
28gr Varget gives me right around 2930 out of 2 different 28" barrels with different bore diameters with 85-90gr bullets....
That's REAL fast
I had loaded up one 85.5 with 28.3gr varget for finding lands, as well as 90smk, 90 atip, 88 eldm. All 4 bullets were 2950-2970, the 4 shot group had the two Hdy and one sierra all touching at 100y, where the Berger was high left.
N150 makes velocity equal per grain in my 6gt and 6dasher. I guess I haven't tried it in the 22br yet.
