Recent content by Laurie

European (i/c UK) proof houses will use the whatever pressure the CIP lists. If there isn't a CIP standard but there is a US SAAMI, I imagine they'll load to that. But, US and CIP pressure standards usually vary anyway. Although both bodies use Piezo crystal transducer devices, they apply the...

I can't comment on the .22 version, but I researched the 6mm ARC when it was introduced a few years back as I considered rebarreling a 6.5 Grendel Howa 'Mini' rifle to it for target use. Two P-Max pressure standards and appropriate loads tables are being supplied in recent Hornady data and...

There are two primary ARC upsides. First, as @UpNorthMI says, it can be used in the AR-15 platform thanks to its short COAL. That's not much of as plus here, but a huge one in the US and anywhere else that allows 'modern sporting rifles'. It's a small plus here in that it's a straight adaptation...

For some reason, Hornady continued with over-steep tail angles with most members of the AMax range. The 168gn model retained the Hornady 168 HPBT Match's / Sierra MatchKing's 13-degree angle (as did the 155 and 178gn versions). ELD-M bullets have 8-degree boattails which have been found to be...

You're thinking of the first generation of 30-cal 168s, the Sierra MatchKing and its similar form Hornady, Nosler and Speer competitors. They were designed as high accuracy short-range bullets. (In fact, the original of the breed and still arguably the best, the 168 SMK, was introduced way back...

This bullet has an average G7 BC of 0.261 (Bryan Litz from actual testing). At 1K, its retained speed is calculated to be 1,174 fps (but that will vary considerably shot-to-shot either side in practice). That's at sea level, 29.92-inches Hg / 1,013 millibars atmospheric pressure and 59-deg F air...

BASC have got it wrong if they show it isn't compliant. All Bofors powders whether marketed under the Norma, Alliant or any other name are definitely Reach-compliant. (That also applies to Alliant rifle grades from other manufacturers as some are made by Swiss manufacturer Nitrochemie (the...

No, it's made by Eurenco Bofors in Sweden and as with all European manufactured powders is Reach-compliant. Yes, they are very close. They're both made by Bofors and appear to be the same thing in different cans by most measures, but MRP users in other parts of the world swear that MRP is...

QuickLOAD is usually WELL out for Viht N150 and 550 on its default powder values in most cartridges. That is it underestimates the MV (and presumably pressures too). Unless subsequently corrected as a result of actual results from users, QL's compiler relies on values supplied by the powder...

I have a copy of The Terrific Twenties in good condition and signed by Todd Kindler dated 8 Dec 2009 if you get in touch. For the jokers (and genuinely confused) out there :) :-| , it's a large format ring-binder paperback published by Kindler's The Woodchuck Den / Small Caliber News extolling...

Viht's data is fine - use that. You are likely to get poor obturation and a heavily sooted chamber and cases with lighter N140 charges. The 7.62X53R was the Finns' military cartridge for over a half century mostly powered by Viht propellants, so the company knows more than a little about this...

@palo is correct. The CCI-400 and the standard SR Rem 61/2 were originally designed for the .22 Hornet and its pressures. Remington used to advise its model was unsuitable for modern higher pressure cartridges, principally 223 Rem. These two primers have thin (0.020") soft cups (as does the...

I've seen this a couple of times with Tikkas over the years. The extractor is invariably blown off the bolt head as here, but it seems rarely if ever suffers any damage. You've been lucky in being able to open the bolt afterwards as usually the detached extractor parts drop into a bolt lug...

I recently compared 6.5X55 loads tables between different editions of the Speer Reloading Manual. (This is one of those that provide two levels depending on rifle age/type.) There was a huge reduction in the more recent edition including those for strong modern rifles, to the point where I'd...

I don't think they do produce modern factory loadings for the 45-70. AFAIK all US factory loads conform to the very low SAAMI MAP. (That's why the .45 Marlin was developed, in effect a 45-70 +P loading but with a belt so it can't be chambered in a 45-70 rifle.) Reloading manuals do list three...