Recent content by Darkker

Remember, Hodgdon has never been upright in their advertising of products, nor could their crusher testing accurately describe the things they bought from surplus. That's why for a long time they said Superformance was dangerous in the Creedmoor, progressive powders can't be accurately recorded...

All Ruger bolt actions are the same thread spec, and shank dimensions. Which means, you call PTG and buy a $18 nut which works with any AR armorer's wrench. Then you buy any RPR or American pre-fit barrel that makes you happy. I first did this almost a full decade ago, and I highly doubt I'm...

Took Frankford a few years of testing. Moral of the story is it's irrelevant if you just look at the gas tube. The endurance testing was focused on NOT cleaning it.

BL-c(2) comes from the military powder called WC846. That powder has a patent allowing a Max level of CaCO of 0.5%. After 3 years of testing, and several hundred thousands of rounds fired, Frankford arsenal found SOME lots that were near Max; COULD cause some M16's gas tubes an issue. So Olin...

Let's talk about the manufactures. There is only one private powder mfg in the US. So who is General Dynamics? A defense contractor. Otherwise you have Thales, a French defense contractor. Or Groups SNPE a French state owned defense conglomerate. Rhinemetal is a German defense contractor. They...

Do the math from my formula. Assuming a smoking fast launch of 2800fps, an 8-twist will give you 252,000RPM. That SHOULDN'T cause destruction, as most light jacket bullets (TNT, SXSP) have a limit of 230-250,000RPM. You may want to confirm that with Berger. Couple of potential issues with a...

Few questions to ask here. Which bullet? Hybrid, or Target Hybrid? They are different lengths, which is why twist is important, NOT weight. The answer is that either is stable at a sedate launch velocity of 2400 fps, with a 10-twist. The problem with faster twists become a question of...

From what I've seen a lot of people also see jesus in their toast.... Unless you are pushing things hard, Creeds aren't generally that fast with Canister powders. While rarely admitted, most barrels are not fast, they are slow. I don't know anything about Strelok, but as a generality to most...

JBM - Calculations - Stability Look-up the length, and fill in the blanks; will tell you if it is stable.

The IMR is mfg'd by General Dynamics in Quebec, the Hodgdon is by Thales via ADI in Australia. The Extreme coatings used are not a universal property, but designed around very specific conditions. Although they don't like telling you what that is, it would appear that the cartridge type designed...

/\/\This right here. Differences in weight, merely reinforce that there is no single recipe for cartridge brass. I have mixed headstamps spanning several decades and brands. With my dies, they are all VERY close in water capacity, but not weight. So for what I am after, I interchange them.

Yes, very well aware of that. Am interested in it's, shall we say, "Off-Spring". Given certain companies refusal to post any nominal info about powders, and some that do; I don't generally fall in line with the "Canister is tighter tollerances", but do agree with the basic premise. SMP-842 is...

Anyone have info? Despite some similarities on paper, Accurate confirmed it is not 2460.

Agree that a factory new rifle should digest any ammo. If you have a regular bench vise, you won't need an action wrench. I have only had to use a vise on two of a few dozen rifles, just the wrench is what it typically takes. Few things about the ammo: The load on the box isn't what it is...