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I'm back on the 88's.
In hindsight I attribute my pressure issues earlier in this thread with brass sizing and fast powders (Lever, H4350).
I came back from Shoot2Hunt with a goal to make one of my rifles line up with Quick Drop.
I was manipulating fps and long match bullets in Shooter App on the flight home and with components that I already have the 2 options that stuck out were 77gr TMK with 22-250 brass and 88 ELD with my bootleg 22 CM brass.
The slow powders are I have on hand are H1000 and N565. I have a lot more N565 so I went for it first.
41.5gr N565 @ 2.680 (lands are hitting at 2.700) averages around 2750fps which is a little hot for quick drop by 15 fps or so but I was looking for an easy to remember load value with a .0 or .5 after the whole number.
I'm going to practice hiking away from my Cold Bore Target and randomly stop and make shots in field positions with quick drop calcs...without Shooter App or a profile in my Revics. I put my cold bore target around 600 yards out from a position with a mowed path on purpose to represent the range goal of the class.
The 223 lines up nice with the 77g TMK, 79g DRT both around 2800fps, and 80g ELDM at 2750fps. Confirmed each with shots at 600yds.I’ve certainly thought about designing loads to make quick drops work. My .223 77 TMK load lines up out to 600, kinda seems like the 88 gr is neutering the 22CM to get there though.![]()
I’m glad I’m not the only one who thought that about the 22cm. I didn’t build it to dumb it down though, so not going to load it lighter to find a better QD load.The 223 lines up nice with the 77g TMK, 79g DRT both around 2800fps, and 80g ELDM at 2750fps. Confirmed each with shots at 600yds.
The 22cm is too fast, corrections for quick drop good gun get a bit busy even with short barrels.
If you don’t look at the “yardage” how do you make a wind call?In order to QD you still need to range the target…
I’ve honestly stopped even looking at the “yardage” in my Revic binos this spring and summer and just looked at the trued up dope solution that instantly populates right in front of my face.
Taming down my 22CM to align with QD, when it’s my long range hunting rifle, doesn’t make sense to me. For my 223 and sub 600 yard shots absolutely.
The 223 lines up nice with the 77g TMK, 79g DRT both around 2800fps, and 80g ELDM at 2750fps. Confirmed each with shots at 600yds.
Yeah, but..., kinda seems like the 88 gr is neutering the 22CM to get there though.![]()
Because the profile has a base 5 or 10 MPH full value wind (whatever you set it to) right in front of your face as well. It gives you both instantly.If you don’t look at the “yardage” how do you make a wind call?
Ahh, i see. Kinda forget about that feature. So used to just seeing distance and applying gun number math.Because the profile has a base 5 or 10 MPH full value wind (whatever you set it to) right in front of your face as well. It gives you both instantly.
Yeah, but...
A lot of guys are loading up to or over pressure on brass to attain goals.
It's nice to have the capacity to screw around the other way.
Wow.View attachment 520331
Iv gotten enough questions and have had enough questions about this cartridge that I think it needs it’s own thread. Too much clutter in the 223 thread. I’ll start with my build, and findings on what I’m hoping will be the ultimate deer gun. Hopefully others can add their experience as well as I know a handful of us on here are in the process of making one of these things .
I’ll start with the barrel, I ordered a 16.5” PVA prefit, on a 7 twist blank, the prefit has .100 freebore, is PVA 3B contour and threaded 1/2”, barrel is also cerakoted. I ordered on the 10th of January and got the barrel today. The barrel weighs 2lbs 9oz. The way PVA contours their barrels you end up with the same or similar muzzle diameter whether 16” or 26”, so going longer would likely increase weight more than expected.
THIS IS A TIKKA PREFIT.
View attachment 517270
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View attachment 520236
The barrel spec is a 7 RH twist, .219 bore, 6 groove barrel. The chamber is cut for .100 freebore. Speaking with PVA they are specd with a large neck so alpha and the like will run, alpha brass drops in the chamber without difficulty. Machine work looks excellent. I took some measurements with 88eldm with it off the rifle.
I screwed the barrel on, and torqued with a SAC modular action wrench to 75 ft lbs. Headspace was confirmed with forester headspace guages.
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I’ll update this thread as it gets screwed on, as I load ammo for it and as I hopefully shoot some animals this fall with it.
I encourage others to share their experience with it as well.
That's a good barrel for speed then, I'm at 3060 with 39gr h4350 in a 20". I'm at sea level so probably not applicable to most of you but quick drop good gun gets me within a tenth to about 450 then gets out of wack. Still helpful for a lot of the areas I hunt although using the revics now if I have a range I've also got an elevation solutionJust FYI, I’m just a tad under 3K with 88’s out of a 16.5” barrel, with 38.5g H4350 and no apparent pressure. Just my load, please use your own data.
Both work great and are quick.Ahh, i see. Kinda forget about that feature. So used to just seeing distance and applying gun number math.
Cool stuff. I have the revics and do think the wind feature is nice and intuitive. I just haven't committed to taking the time and using it. I have used gun number stuff for so long in NRL Hunter comps and practice that frankly most of the time I am just going off of feel and don't take the time to wait for it to spit wind out. At one point I think I either turned it off or just set it to 0 MPH.Both work great and are quick.
I made this video for a buddy of mine who was interested in buying the Revics, give it a watch and see what you think.
Overview:
The Shot:
Legit 10 shot 1” groups from 80 ELDXs at 22CM speeds is REALLY good.I’m super happy with the speed and accuracy. The gun actually shoot everything very well, but likes the 88’s the best, then 85.5 Bergers, then 77 TMK’s and finally ELDX’s - the X’s shoot the worst and are still right at a 10 shot 1” group.