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Predatory capitalism is a bitch. It comes from FTC losing the stomach for stopping mergers and acquisitions not in the best interest of the country. ATK is just trying to maximize profits for their stockholders. BUT, if they are engaging the base commanders in a deal that circumvents the...
Jim Kirk,
Yes, the .308 case is too small to hold the required amount of H100V to do any good with the 168 gn OTM (maybe 43 grains for 2350 fps in 24" bbl.).
The .30-06 case (larger) would allow about 58 grains and give about 2800 fps, 24" bbl. The case is longer but about the same...
.308 is not magnum but .243 is ? ? ?
7-mm-08 is only .024 smaller in bore. So, no that does not make alot of sense. I think it has something to do with protecting the gas gun shooters. I think I will try it with my .308 bolt gun anyway just to see what happens. Anybody got a starting...
I discovered the same thing. I called Hodgdon about it. The tech on the phone said "my boss told me it was not a good application for .308" :scrutiny:
They post loads for other calibers and bullet weights all around it. I am currently using it for 7mm-08 loads. It behaves well, as far as...
This sounds like the .303 enfield reloaders dilemma.
So what do you do? Perhaps:
1. buy new brass, neck size, trim, load, and fire;
2. neck size only with trim on 1X, 2X, etc. until bolt won't close;
3. bump shoulder back slightly, load, and fire, go back to #2.
Create as many...
I just took a look at this with QuickLOAD. There does not seem to be much of a problem. I assumed 41.5 grain of IMR4895 with COAL consistent at 2.810 (that might be off a little if you are trying to hit a cannelure groove). With the 1.160 bullet length it shows a 4% unused volume with a total...
PRVI is popular here in the US. We use their brass, bullets, fully assembled rounds, etc.
Something you said about comparing .30-06 to .308 (7.62 x 51) made me look up some lab notes in Speer #13, Page 281.
To quote Speer: "We've had callers ask why the 308 velocities shown are equal to...
That is why I am adjusting the energy density a bit. The predicted velocity using the IMR4895 model was higher than actual chronographed average of 5 I know we are admonished not to fool with powder characteristc files, but going from 4080 to 4000 kJ/Kg is only a 2% change and it fixed the...
I''ve just finished running some through my .308 Remy SPS
Trying to back it into QuickLoad. I started with the IMR 4985 powder model, and changed KJ/Kg to 4000, and changed solid density to 1.68 to get to RG 4895 performance.
YMMV
Qukcktarget tools in the QuickLoad (TM) suite has back calculators for BC's from various data sources, like two velocities and distance, a series of drops and distances, etc. Gathering the data for the input, like atmospherics, and two velocities at distance, can be problematic.
Trichlorethylene (banned substance), Freon (banned substance), Varsol (banned??)are great ultrasonic cleaners, degreaser solutions. Also, you may need adjust the mass of the charge (pieces of brass) and depth of liquid to fine tune the ultrasonic cavity and obtain maximum transfer of energy to...
I would caution you to carefully read the fine print, introductory notes, foot notes, and liner notes in the Speer #13 manual. For instance: If you just jump in and load for the .308, you may miss the fact that they based their recipes on IMI military brass (the thick wall stuff with lower...
What is nice about chronographing is that you can set up a chrony range in your garage or basement. You only need a 20-25 ft clear span, and a trustworthy backstop. I use 10-12 inches of damp sand in a 5 gal bucket, and so far have stopped everything. You do have to retamp the sand, and not...
Be careful with those things...If those 45 primers push back hard enough, they can kick the hammer back far enough to cause the revolver to go full auto.:eek:
I've seen some aux. tooling in the trade mags, that one can use to help true up the truncated meplat. Some of the "bulk" OTMs I have definitely show a distorted meplat. Anyway, if your bullet height (base to meplat) is ES = .015, then your COAL will vary that amount and then some due to other...
I measured some bulk .308 168 OTMs while back. The extreme span for those was .01 inch. I am surprised that you would have that much with the .223 69 SMKs. Are you compressing the powder? Sometimes compressed powder pushes back. Perhaps you should pick 10 or more bullets out at random and...
About 1.5 grains less for the 77 gr SMK. BUT, it probably was not the same powder.
One reason this question is fallow, is that reloaders have known that hot rod .223 NATO loads tend to beat up the brass, such that only a few cycles are obtained before the primer pocket gets too loose to use...
762NATO,
When winchester went commercial with the round after development for military, they called it "308". It is all the same. Get yourself a loading manual like Speer #13 or #14. It lays it all out in there. .308 is the diameter for american standard "thirty" caliber and 7.62 x 51mm...
I am running 23 grains of varget and maybe just a slight crunch, if I do not use a drop tube. It does not hurt to compress varget much more, but one should be aware that bullets may creep out against neck tension alone if not watched after. I am seating to 2.255 COAL in my process, with no...
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