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So you're that Muzza, should,ve known. 3 weeks & counting huh, looking forward to that beer, should have enough of those tokens & frantically trying to accumulate brownie points, they just seem to evaporate so fast.:laugh:
As to the smaller dovetail, if I've got it right, there were two sizes (at least) in Brnos, about 14mm internal in Foxes & maybe their 22s & about 3mm bigger in PH/ BSA which I think is the same as the ZKK 600/CZ550s.  Plenty of rings for that size including QD, but you're back to recoil lugs again, maybe some small pins on the front base ?
Steve.

Not sure about the base on the barrel but the one on the front receiver ring sure looks like a genuine PH base with the narrow grooves in it, also not unlike a BSA dovetail to look at. Having said that. I've only ever seen them in alloy, steel would have been much better as the hole for the recoil stud tended to elongate with any sort of recoiler on the alloy bases unless the rings were kept uber tight. I don't think they would mill for weaver rings very well, the PH dovetail lacks the top shoulder that the Weavers have & as most of the recoil groove is in this area there would be little purchase left. I'll measure some tomorrow, too cold in the basement tonight, & get some measurements. This dovetail is the same as CZ550 & brno 600 series rifles have, though the recoil set up is different, so that might be an option.
Steve

Thanks for those measurements Rick, Hornady are approx 1.44" long & .56" in diameter so certainly not compatible. I always like to know of alternatives but not in this case.
Steve

Haven't posted in a bit Rick but still look in from time to time, so many forums so little time as it were but I always enjoy the mannerly way in which this forum conducts itself. Would that all were so.
Steve.

That looks to me just about identical to the old Pacific, now Hornady puller I have, does anyone know if the collets are interchangable between the two brands?
Steve

Always curious about arms makers, I went to the site.
 
Their accuracy claims for the .315 caliber rifle are 4" at 100 yds and 12" at 300 yds. As quick as we are to redicule this accuracy, let us be as quick to acknowledge their honesty. No fantastic claims that are so often made in "the West".
 Paul

You might be being a bit hard on them Paul, if you click on the individual ammo pages, the 315 is claimed for 3.5" at 200 yds, the 30-06 fractionally better. These seem acceptable & realistic claims to me.
Steve

A quick google on rws brass gives the impression that it is very highly regarded but expensive, quality not coming cheap is the theme. If you can get it at a good price in a caliber you can use then go for it I reckon. I have certainly never heard anything to the negative on this brand.
Steve

[If you haven't read the Flashman novels you should do so. They are the most entertaining books I have ever read.:D Cheers!. Regards, Rick./SIZE]]

If you haven't read the Flashman novels you should do so. They are the most entertaining books I have ever read.:D  Cheers!. Regards, Rick./SIZE]

Read them in my youth at my late fathers urging. He adored the Flashman novels & as a history buff, he had high regard for the historical accuracy of the situations Flashman used to find himself in. Good reads.
Steve

Quite remarkable. Why would a guy carry an antique rifle in the bush????? Well, lets see.......they always fire, they are indifferent to sand and water, They have a large magazine, they are easy to reload, and they make a huge flash and noise. I'm sure there are other good reasons, but you get the drift!:biggthumpup: Regards, Rick.

Pretty much what I thought too Rick but I suspect there is some validity in what Paul has proposed too. I thought it was a cool pic with a cool rifle (my favourite LE as I mentioned in a recent post).
Steve

My brother recently went to Nairobi , Kenya on a business trip . While there he took a walking tour of the Nairobi Park Game reserve. He had lots of neat pics of animals but for some reason this was the one that caught my eye.:D
A good old No.1 Mk5 Lee Enfield Jungle Carbine still doing duty.
Steve

My 1st centre fire & 303 Br was a Mk5 Jungle Carbine which I still have & is still my sentimental favourite. I also have a No1 Mk4 & P14 in full mil trim. My favourite shooter is a BSA modded P14 delux with the sporter stock rather than the cut down mil one, but I would really like a Parker Hale Supreme which is a select grade Mk1 No4 with tight barrel & chamber , barrel docked to 22" & walnut sporter stock. They fit me well, & come up beautifully, still on the look out for a nice one. Favourite, got to be the Mk5.
Steve

The shooter tried to close the bolt on an improperly sized cartridge - handload or factory doesn't matter. He chose to "crank" on the bolt handle. When he did, because the locking lugs didn't seat in their proper recess, he sheared the retaining pin. THE SHEARED PIN WOULD NOT have caused the observed failure, because the pin doesn't 'see' any pressure. The failure occured because the head never rotated into the lug recesses. Furthermore, if the bolt had been properly seated AT THE REAR, the sheared pin STILL wouldn't caused the failure.
 
I feel strongly, that this was operator error, not a design flaw. The only "design flaw" I might be willing to acknowledge is the one in which the pin in question is vulnerable to failure because of operator error.
 
Paul

I tend to concur with your conclusions on this one, there is certainly nothing  inherently wrong with a bolthead attached in this way as many hundreds of thousands of Savage rifles will testify. I've not heard of problems with them in this way. I wonder if Mossberg have upgraded their product in light of this, I reckon the design is basically OK, maybe a bit light in materials or specs.
Ooops, getting off topic a bit here:(
Steve.

Arkie, one thing that occurred to me after I'd posted earlier is that should you in the future want to get  a die set for this, the 6.5/257 that you have is NOT the same as a 6.5x57 as loaded in Europe. As you seem to know the 257 has the same shoulder angle & headspace as the 7x57 but the 6.5x57 does not, slightly steaper shoulder angle & shorter neck. Not a huge difference but there all the same.  A mate who looked at a Blaser barrel in 6.5x57 found this out & figured it was too much hassle to neck up 7 x 57 brass & then neck down to form a dummy shoulder as would have been necessary. After he'd passed on the barrel he found he could have got S&B ammo for it.
Steve

Years ago now I was given a Ross 1910 bolt by the local police arms officer on one of my numerous forays into his office to get a "permit to procure " as was the rules back then. Having read the bumf about these I proceeded to strip it & reassmble it & proved to myself it could be reassembled wrongly & still appear whole & complete. Having only the bolt I never had the chance to try it in an action. I eventually passed the bolt onto a guy who had a couple of Rosses. Never thought to try the assembly thing again.
Re the Mossberg bolts, these rifles have a floating /separate bolt head similar to a Savage 110/116 etc. It is my understanding that the pin than locates the bolt head onto the bolt body sheared & when the bolt handle was turned down the locking lugs didn't turn into the locking recesses & allowed the bolt to blow back when the cartridge fired. In a similar model Mossberg I looked at, the bolt handle seems to do duty as a safety lug, turning into a sizable notch in the right receiver wall. I don't know though how strong the bolt handle is, whether a one piece construction or not & thus if it is enough to act as a safety lug given complete failure of the front locking lugs.
Steve

As BH has alluded to, the 1910 Ross was an immensely strong action when assembled correctly. I have only read the commonly available info about this problem so have nothing more to add to this aspect.
As shooters of LE 303s well know, their chambers are often horribly oversize to ensure reliablity of feeding & extraction with all types of 303 ammo from various makers & dirty & scruffy ammo too. Total battlefield reliability but a handloaders nightmare. The Ross rifles were apparently made with what approached match grade chambers & under battle condtions & those prevailing in the WW1 trenches, poor feeding & extraction was almost inevitable.
Steve