7mm prc I'm getting up 85fps difference in the same box is this normal ?
For a high end round i was expecting something more like 20 or 30 fps differences?
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7mm prc I'm getting up 85fps difference in the same box is this normal ?
For a high end round i was expecting something more like 20 or 30 fps differences?
When we're loading our own, if we want consistent velocities, then we use quality brass with individually weighed charges of temp stable single based powders.
The same rules apply to factories making ammunition too, regardless of whether the ammo eventually costs $1 or $10 per round to buy.
Feedback I'm getting from customers seems to be that they're getting much better results using the Federal offerings.
Thanks for the info will look into that $180 a box for federal is getting up there ! Lucky the miss dosent go in the safe !
it is the norm for hornady precision hunter ammo these days,(terrible stuff)6.5 prc last box I got had close to 80 fps difference and was on average 100fps slower than the box specd speed.contacted hornady with some data to boot and they just blamed my chrono.google it and its common knowledge what's going on with certain hornady ammo and they have admitted they changed powders which is the cause.
Hornady ammo isnt high end. Its mid range with good marketing. Not budget or high end. Price is usually not quite as high as norma, nosler, the federal premium, or berger options but more than ppu etc. Or atleast it used to be back in the day.Quote:
Originally Posted by 7mmhunter
The other thing to be aware of with the Horny 175 eldx 7PRC ammo is that the first shipment that came to NZ had three different types of powder loaded in em so there can be big variables in speed & POI between batches.
Changing powder is one thing (to reduce pressure ? Or ‘cos Federal shorted them on RL26?) but for any commercial manufacturer of ammo to have 150fps variation within a box of 20 rounds is unforgivable & potentially dangerous. Just taking the piss really. And it’s not like there ain’t some good alternative powders for 7PRC.
Wish Hornady would put the same effort and resources into their products/quality as they do into their marketing.
If you shooting deer at long ranges even well made reloads are expensive components are bloody dear and we all load and never factor labour. 200 bucks for 10 dead deer is fucken cheap compared to a kerosene taxi ride, New swaro scope or a thermal.
There was thread on same issue a year or so ago. Rounds pulled had different powder in different batches too.
How is it dangerous if top end is still below top pressure???? Hells teeth we have got precious in last few years. It's not that long ago a 150fps spread was normal if not good and anything under 50 was top notch. Manufacturing folk are adverse to being sued so ALL ammunition will be below saami pressure levels or lawyers would have a field day.Quote:
Originally Posted by chainsaw
I still got an ES of 69 fps over 15 shots with the federal premium ammunition. Admittedly this was very early in the barrel life so that may have been a contributor. It grouped very well at 100yd but went straight to hand loads after that.
I'm not sure what the quality of the brass is like that federal uses, but I got some pretty heavy ejector stamps on maybe 1/3 of the factory rounds.
@Edunn What was the speed like? Generally found federal to be up there on the speed unlike some other brandsQuote:
Originally Posted by Edunn
How is it dangerous? Good question & you’re right that given recent batches of Hornady ammo have been “milder loads” then there’s little risk. But earlier batches which were “up there” at max velocity & pressure?? Combine a warm batch with 150fps error in your manufacturing process….. well I for one would not want to the person be pulling the trigger. 150fps error indicates shite control on the process. That’s got be more than a grain or 2. Maybe you might accept that in old milsurp ammo but in modern production processes, nah no way.
I pulled some precision hunter rounds and from memory they varied by about a grain through the packet. So not very precise at all. Remember it’s all about the marketing and keeping profits up.
Yep I was aware of this so was buying in batch lots to try and avoid
Looks like it's just turning into $$$ over quality sadly
The idea or concept of 7PRC is great - an efficient 7mm magnum capable of pushing 180gn pills at 3000fps. But the marketing guys at Hornady forgot to check their production & engineering could safely deliver on that expectation. Marketing hype over engineering/process capabilities
So in effect we NEARLY going full circle,back to days when factory ammunition was "safe,went bang and was good enough" nobody had chronograph or rangefinders so it didn't matter.if you wanted super accurate loads,you reloaded..full stop. the idea of mass produced ammunition being,super consistent AND fast AND accurate.....well maybe the marketing department is to blame lol
Yeah you really can’t expect the same level of care to go into preparing rounds in a factory that pumps out 100,000 rounds a day (or however many they do) as some freak like me who weighs every charge to the 10th of a grain, and measures rounds randomly with verniers to make sure the length is just right. That’s why we reload, to reduce error in the process and to increase consistency, and therefore accuracy.
Make your rounds 5 thou too long then measure, then dial the final few thou into your vernier seater and seat, then do a final measure with a zeroed comparatorQuote:
Originally Posted by Mararoa
That way ALL you ammo has been measured and is at the same jump to the lands
Its interesting, their cartridge development has been innovativve and theyre responsible for 17HMR 6.5Cr 300PRC 6mmARC ELD M and other bullets and now 7mmPRC all steps forward, yet their factory ammo and brass arent top of the range.
2860 average from a brand new barrel. I haven't tested them again since it was new but the barrel has definitely sped up so I'd be expecting a bit more than that now. Probably in the ballpark of what they claim on the packet.Quote:
Originally Posted by outdoorlad
If for whatever reason I had to give up hand loading, the federal factory would be my pick. I wouldn't bother with hornady.
The 7prc is a perfect fit into a tikka mag.
I see more and more in the USA people jumping to the 7-300prc. ( for those who reload).That one would be a bit too long for the tikka mag but would probably fit well in a Sako mag or remington/ savage mag, and help to reach the 3000 fps+ easily with out stressing the cases and being an easier alternative to the excellent 28 nosler.
Tikka already make the hugely successful 7 mm rem magQuote:
Originally Posted by Friwi
In the wrong twist rate :wtfsmilie:Quote:
Originally Posted by 7mmsaum
Some of the latest tikka 7 rem mag are 1 in 9” twist, which should be enough to stabilise up to 180gr eldm.
I really like the 7prc. Hornady marketing is crap but getting factory 175gr ammo to shoot circa 2900 from a 22" barrel is still pretty good. My previous rifle was a 7mm Rem Mag, which I loved, but I wouldn't go back. If I were to move to another 7mm I'd probably give 7SAUM a go.
If a cartridge/chambering can shoot the Hornady 180 ELDM or Berger 180 Hybrid without the need to have a custom rifle spec, then it's good to go.Quote:
Originally Posted by Edunn
Hornady's true success comes from the bullets they make. With Bergers being 2-3x the price of Hornady and often equal in terms of performance, a lot of shooters/reloaders go with Hornady.
Interesting to note that both the 7-6.5 PRC and 7-300 PRC have gained traction as wildcats (ADG makes headstamped brass for both). Goes to show that you can't please everyone.
Once everyone runs out of Re26 here and has to use ADI there might be a few for sale and the old Rem Mag will be back in favour :D
On that note.Quote:
Originally Posted by outdoorlad
7 Back country is going to have a interesting time regarding that powder.
https://www.nzhuntingandshooting.co....ammo-es-97043/Quote:
Originally Posted by 7mmhunter