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Thanks, DrMike! -

DrMike, Could you possibly run the exact same load again, except change: COAL: 2.620 Powder: CFE 223 Thanks!

I stand corrected. Unlike a few years ago, I see Nosler now lists the bullet OAL on their product description page. -

Thanks. I'd referred to that list years ago, but it was sparsely populated and at the time didn't list the bullet I was interested in. Glad to see it has been supported and is now more complete.

DrMike, How do you (or QL) deduce the "Useable [sic] Case Capacity"? Knowing the case OAL, empty case case capacity, and catridge OAL (to bullet tip), I (or QL) still must know the bullet OAL in order to calculate usable (net) capacity. But Nosler does not publish their bullet lengths. In...

Here's what boggles my mind: Hodgdon's published data, and also an article by Steve Gash about CFE powder they published in their 2013 reloading annual magazine, both are waaay more optimistic than my results: Hodgdon Manual (Speer SP 50-gr, 24-in barrel, WSR primer): 28.5 gr -> 3505 fps...

Yes, seating depth tuning will be for accuracy, but of course if I seated the bullet a lot deeper (not going to happen) it would reduce net case capacity, and so could change the velocity-related responses as well. More fun to come ...

These are preliminary groups, looking at velocities and vertical POIs, vertical dispersions, velocity deltas and ESs mostly. (Following Erik Cortina's approach, thread active over on accurateshooter.com). I haven't started tuning seating depth. In light breezy conditions, not worrying about...

DrMike asked me to publish my results for CFE 223 in 223 Rem. (Velocities from Chrony Beta Master @15 feet. Average, extreme spread for 3-shot groups.) Rifle: Rem 700 VS Barrel: 26" Ambient: 60 f. Cartridge: 223 Rem Case: RWS Powder: CFE 223 Primer: BR-4 Bullet: TNT 50-gr BOAL: 0.69" Jump...

What about for my Windows 7 desktop PC? (What old people call "computers".)

That red convertible was a Bonneville as I recall. I should point out that these loads were assembled many, many years ago, so It's possible the powder in them is not behaving exactly as when they were fresh. I don't know if it's possible for aged reloads to become "hotter" over time. But I...

Well, I followed through, and it was sobering. Recall these are RE-22 loads - 58.4 grains - a full 2.0 grains beyond Sierra's max RE-22 load for a 140-grain bullet. The load from my 22-inch Ruger 77R clocked 3150 fps. Sobering because the first round took considerable effort to lift the bolt...

Sorry, won't be able to clock my old 140-BT load until after 12 July at the earliest.

Only reporting Hodgdon's data, no editorial content added. From the same 24-inch barrel, H-4350 only delivered 2870 fps @50,400 CUP. That's over 100 fps slower than H-1000. Step down to a 22-inch barrel, would H-4350 overtake H-1000? Possible, I suppose ...

Sorry, I did not get a chance to clock my hot 140 BT loads in the 22-inch Ruger. (My shooting buddy actually owns the chrono, I own the portable shooting bench. Rather like Jack Sprat and spouse we are.) It occurs to me Hodgdon Superformance could be the ticket here, but it is not flexible, and...

Judging by the product reviews and how-to articles in A.R. and S.T. magazines, 95% of firearms must be either ARs or 1911s. Yawn.

Update: I am 4/5 through The Final Finish series - all 4 abrasive sets fired. Now there are ten rounds of regular Tubb boron nitride-coated bullets for final "burnishing". I have been using 34.0 grains of CFE 223 at 2650 fps for this process. But I have encountered significant copper fouling...

It is a 100% verifiably proven fact - and a "consensus" amongst experts, making it "settled science" - that no animal ever knew whether the bullet it received was going 3000 fps, or 2900 fps, when it left the muzzle.

In around 1981 I drew my first mule deer tag in Nevada, where I had moved for college some years before. Suddenly I needed a rifle! Looking in the local newspaper there was an older Ruger 77R in 270 Win for sale and I jumped on it. If it would have been in any other non-magnum chambering I would...

I said they were worked "up to" pressure signs, but that doesn't mean I left it there! In fact, looking at fired cases, no extractor marks, but primers are well flattened (not to the extreme edge, and no pin cratering.) Brass is WW. I was mistaken, they are RE-22 loads - 58.4 grains. That is a...