Ok you 22BR experts. What is the viable velocity and bbl life of this combination?
22BR and the Berger 90's?
- Thread starter FroggyOne2
- Start date
Why should I wait for you to tell me in that manner, when I could find out that way before you could!
Clint Greenwood built a 22BR with a 6.5-tw bbl. just for that purpose several years ago, but I think he ran into problems with that infamous batch of JLK 90s that Jimmy brought to Perry in '03. Dunno what he ever did with that rifle - he used to frequent German's FL. HP. forums years back, but I haven't seen or heard anything out of him since then. He did run the Texas HP Shooting forum back then - it might still be a viable avenue to contact him. If not, he's on facebook.
I've got a 22BR reamer, and had given more than a passing thought to doing such a rifle myself. But if I did, it wouldn't have a 6.5tw bbl - I've got the 7.2tw 5R that we've spoken about, and would bet that another Bartlein I have in 7.4tw would also work well with the 90s.
I've got a 22BR reamer, and had given more than a passing thought to doing such a rifle myself. But if I did, it wouldn't have a 6.5tw bbl - I've got the 7.2tw 5R that we've spoken about, and would bet that another Bartlein I have in 7.4tw would also work well with the 90s.
Geronimo Jim
Gold $$ Contributor
I am shooting a Kreigher 1 in 7.75 with 75 grain VLD's. 28 1/2 grains of Varget. I have 1,350 round and it is still shooting lights out.
Dennis,
I agree with you that running a 7.2 twist is ticket. As to powders I am thinking about are 2000MR, H4350 and RL17. I havd three bbls comming (not sure when they will arrive, Rock is swampped) but if one were to run the numbers on the JBM calculator, you would be quite impressed. It is my understanding that with RL15, my 223's will last about 2200 rounds, my current rifle has 1K on it right now. I have two actions with a 223 bolt face and the other is a 308 bolt face. I have been thinking of setting myself up to only shooting one bullet and I would order enough to last the life of the barrel, so my thinking is that I would have to prob order something like 7000 bullets at a whack, but they would all be in the same lot. My other thought is if I didn't go this route, was to build a 6BR and use the 105 hybrid. The numbers for that bullet and the 90's match in the wind.
I agree with you that running a 7.2 twist is ticket. As to powders I am thinking about are 2000MR, H4350 and RL17. I havd three bbls comming (not sure when they will arrive, Rock is swampped) but if one were to run the numbers on the JBM calculator, you would be quite impressed. It is my understanding that with RL15, my 223's will last about 2200 rounds, my current rifle has 1K on it right now. I have two actions with a 223 bolt face and the other is a 308 bolt face. I have been thinking of setting myself up to only shooting one bullet and I would order enough to last the life of the barrel, so my thinking is that I would have to prob order something like 7000 bullets at a whack, but they would all be in the same lot. My other thought is if I didn't go this route, was to build a 6BR and use the 105 hybrid. The numbers for that bullet and the 90's match in the wind.
Randy,
I did some serious thinking about the 22BR several years ago after looking at the load data for it in Accurate Arm's 1st edition manual. Looked like it was pretty much no sweat getting approx. the same velocities as were possible with a 22-250, only with less powder.
I'm still convinced that N550 is the only powder that'll give both top velocity & excellent accuracy with 90s in the 223, which means I'm pretty much stuck paying top dollar for propellant in that cartridge. I did try RL15 with JLK 90s in a fireforming load for a 26" bbl'd 223 AI, but a near max load was giving around 2800fps, while I'm getting 2930 with N550 out of the 30" 5R on the R5 tubegun. Not an apples-to-apples comparison, but it does give me reason to think about how much easier it'd probably be to get really decent velocities AND excellent accuracy out of a good 22BR - with a considerably wider range of powders.
Hmmm - still got a 30" 1:7.4tw Bartlein in med. Palma contour out in the shop - since I have both .473" & .378" bolts for the Pierce TG action in this rifle, it'd be a fairly simple matter to swap bbls. & bolts and use the same action/chassis for both 223 LR & 22BR LR....
I did some serious thinking about the 22BR several years ago after looking at the load data for it in Accurate Arm's 1st edition manual. Looked like it was pretty much no sweat getting approx. the same velocities as were possible with a 22-250, only with less powder.
I'm still convinced that N550 is the only powder that'll give both top velocity & excellent accuracy with 90s in the 223, which means I'm pretty much stuck paying top dollar for propellant in that cartridge. I did try RL15 with JLK 90s in a fireforming load for a 26" bbl'd 223 AI, but a near max load was giving around 2800fps, while I'm getting 2930 with N550 out of the 30" 5R on the R5 tubegun. Not an apples-to-apples comparison, but it does give me reason to think about how much easier it'd probably be to get really decent velocities AND excellent accuracy out of a good 22BR - with a considerably wider range of powders.
Hmmm - still got a 30" 1:7.4tw Bartlein in med. Palma contour out in the shop - since I have both .473" & .378" bolts for the Pierce TG action in this rifle, it'd be a fairly simple matter to swap bbls. & bolts and use the same action/chassis for both 223 LR & 22BR LR....
Dennis,
I like those numbers that your getting with N550! Not sure what I am getting with the 25 grains of RL15, as I have yet to run it accross a chrony of any sort. I just shoot it! Matt Prichton (spelling?) Is using 2000MR with his 223 and the 90's and getting 2900 fps out of his rifle. One of the reasons I am looking at that powder is ability to get good load density with it. It is worth a try at least and it is a lil slower buring than RL15:
I like those numbers that your getting with N550! Not sure what I am getting with the 25 grains of RL15, as I have yet to run it accross a chrony of any sort. I just shoot it! Matt Prichton (spelling?) Is using 2000MR with his 223 and the 90's and getting 2900 fps out of his rifle. One of the reasons I am looking at that powder is ability to get good load density with it. It is worth a try at least and it is a lil slower buring than RL15:
Well the more I think about this, the more I want to try it. The numbers just intice me so much! Light recoil, good velocity and if at the right speed, inside many of the bbl burners with greater bbl life. It is truly worth the effort if it will work. I already know the greatest portion of getting it to work is brass prep and choosing the right powder for the job.
Hi Froggy
I know they are not 90g but I run a 22BR 1:8 twist Hart with 80g VLD's @ 3200 fps with VV150 and CCI 450 primers, barrels out to 1600 rounds and is still a tack driver, I mainly run 300 to 600 mts with it but I shot it at 700 mts last week for a 118.07 out of 120.20.
Load is 30.5g VV150 this is hot so be warned, my brass is out to 27 firings, body die each time and next to no neck tension.
Gadget
I know they are not 90g but I run a 22BR 1:8 twist Hart with 80g VLD's @ 3200 fps with VV150 and CCI 450 primers, barrels out to 1600 rounds and is still a tack driver, I mainly run 300 to 600 mts with it but I shot it at 700 mts last week for a 118.07 out of 120.20.
Load is 30.5g VV150 this is hot so be warned, my brass is out to 27 firings, body die each time and next to no neck tension.
Gadget
Yeah I have been really putting some thought into this and the more I think about it, the more I want to try it! My thinking is either N550 or 2000MR powder might do the trick to get accuracy and velocity. I am really leaning in this direction!
Well I have commited to this project, gonna run a Rock Creek 30" inch 7.2 twist medium palma bbl. So now I have to go through the process of deciding which powders to give a try which the rifle is done. The action that I will use will be a Barnard action and a Eliseo B1 stock. And I have decided that I will use a coated bullet, as to which process I will use, I am not sure, but I am leaning towards HbN this time instead of moly'd bullets.
So maybe we should discuss powders that might be worth looking at. I don't any internal ballistic programs. So some help there would be greatly appreciated!
So maybe we should discuss powders that might be worth looking at. I don't any internal ballistic programs. So some help there would be greatly appreciated!
i tried some berger 90 vlds out of a 7" twist 18" long douglas (CLE) ar-15 barrel. was shooting lake city brass (all weighed--picked lighter cases), wolf primers and h-380 powder. ran some impressive velocity out of that 18" barrel. am kind of curious to see how it would do in a longer barrel
I hear that the 2011 LC brass is pretty good! With that, I am thinking about using it instead for my next two rifles in the .223. But with the 22BR, it will Lapua brass for sure. May go with Jones dies if I don't find a older Rock Chucker to use Warner dies. I deff like the Jones seating die!
So does anyone have Quickload thaat can help me work up a couple of powders that would look good with project, or do I need to start another thread just for that?
Bradley Walker
FroggyOne2 said:
LC 223 brass gets a bad wrap. Only Lapua and Norma are better in my experience, and its only better for run out if sorted.
Randy,
Sierra's 5th edition loading manual shows data for up to the S80MK in the 22 BR. Looks like W748 & AA2460 are the two powders that gave max vel (3050fps) out of a 26" 1-8tw bbl. with the 80. Other powders that look OK to me are 4895 & Varget on the slower end of what they show.
Sierra's 5th edition loading manual shows data for up to the S80MK in the 22 BR. Looks like W748 & AA2460 are the two powders that gave max vel (3050fps) out of a 26" 1-8tw bbl. with the 80. Other powders that look OK to me are 4895 & Varget on the slower end of what they show.
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