BRNO VZ24. BR 91. 257 Improved
- Thread starter Deerdr
- Start date
I seem to recall the Mashburn was on a shortened, necked down and blown out 300 H&H case. - dan
You will find out what you have with the first shot, actually from the picture of the brass it look like a 40 deg. shoulder.
Looky, if the case shown was fired in this 257 Imp. then it is an Ackley, with the 40º Shoulder.
The 28º shoulder is noticeably less acute. [also considerably rarer, lol]
Regards, Dave.
As I said, the RCBS version has the 28* shoulder and the Ackley version has the 40* shoulder. Fire a factory 257 Bob in it and see what you get. - dan
Can't wait to shoot it!
Many moons ago I used to go on many hunting and other trips with the official BC game department predator hunter for the Prince George area. He had a custom made 257 Roberts and I was sometimes the trigger man on his official job.
Once he answered a complaint about coyotes. We drove to the area and two coyotes promptly showed up about a hundred yards away. I started to open my door to get out, but he said, "No, just open the window, we're not sport hunting." I pushed the rifle through the open window and the first coyote just dropped, with scarcely a wiggle.
The second coyote didn't seem to know what happened and he quickly joined his mate as a quiet heap on the ground.
One beautiful October afternoon I was with him when we drove to a remote little lake at the end of a Jeep road. Moose season was open and soon the largest bull moose that probably either of us had ever seen, stealthily approached the lake about 400 yards away and soon was in the water eating lily pad roots. I didn't have my rifle with me but the game warden said, "Here, take my rifle and see if you can get him."
So I took his trusty 257 and started a quiet sneak on the great moose. When he put his head in the water to eat lily pad roots I would quietly approach. Then the head would emerge, with the monstrous antlers all draped in lily pads and the old boy would look carefully around.
On one occasion after a careful scan and listen, he just turned and walked back into the tress from which he had emerged. I suppose he had got a whiff of me and I had not yet reached a distance close enough to him that I had mentally set for the 257.
Sorry, that wasn't a very exciting end to my story, but the whole picture of events on that glorious October afternoon, is deeply embedded in my memory.
BigUglyMan
CGN Ultra frequent flyer
- Location
- New Scotland
Be afraid. Be verrrry afraid.
SC.............it has been my experience that if a barrel shoots good it still shoots good after a rechamber. I have done 3 X 243 that shot very well, out to 6mm-284 that shot equally well after the fact, the same with a 7X57 out to 280 and a couple 7RM out to STWs and they all shot at least as good as before. The same also holds true in my experience of a rifle that won't shoot well a rechamber doesn't ever seem to fix it. The last one I did was a 338 for my kid that shot just awful so I was doing my supergrade 338 to 340 and did his Howa as well, didn't shoot any better as a 340 Wby, and I recrowned it too just for good measure.
I have both, a '76 vintage Ruger 77 in the Roberts and an 03A3 Springfield in the Ackley.
The Ackley is faster, actually very close to a 25-06 I had and in some certain loads it would match my 25-06 especially with lighter bullets.
Where the Ackley also shines is in case life as fired brass rarely needs trimming, the Roberts usually does after three firings.
My main use for the Ackley is for coyote hunting, the Roberts for Deer since the Ruger is a couple pounds lighter than the Ackley.
If your Roberts shoots so well, don't mess with it... build an Ackley from scratch.... just a suggestion...
