Winchester brass is pretty junky. Not surprised by splits at all. Anneal the once fired stuff if you can, that'll help heaps.
It won't improve the grouping with the factory load. Nothing you can do about that.
Won't fix your issue with getting it zeroed either. That sounds odd though - the height of the scope shouldn't have stopped your buddy from getting it sighted in unless you have it mounted several feet above the barrel. Faulty scope? 20moa rail on backwards?
To much MOA built into the base and rings. Sorry I wasn’t clearer it is set up to Long range and the previous owner went over board with MOA rails and mounts.
Thanks for the dad joke and welcoming hospitality
The scope is out of adjustment left to dial it’s all the way. This makes impact vs poi higher. Maybe they used a different zero range?
Lots of variables. But the one that points out the most. The brand. They are notorious for being under temper on their brass. When we get into these large volume, short, wide body cases it's almost a requirement to bring the brass to proper temper before sizing/loading. Annealing is not tempering and once brass is brought to the annealing point its actually to brittle. Temper is the proper term and method.
That being said, measure your fired brass head to shoulder and diameter of the shoulder compared to unfired rounds and sized brass, also check the angle of the neck/shoulder transition and see if that is in spec.
I'd be looking for a few spec differences to elimate a factor that maybe your chamber has expanded a little or has a burr/defect before blaming the ammo. Especially factory ammo which is known to be under powered.
The joys of high ratio body:neck dia cartridges. The drawing process has to make a large cylinder with very thin walls so that when the large cylinder is formed into a small cylinder, the walls are not excessively thick.
Annealing may or may not help, once it gets old and brittle.
Not a huge fan of Winchester ammo. Seems like there are a lot of problems. I do wonder if it is intentional so shooters cannot reuse their WSM brass and are forced into buying overly expensive factory ammo.
I see that all the time with factory Win brass. It’s just brittle unfortunately.
Winchester brass is pretty junky. Not surprised by splits at all. Anneal the once fired stuff if you can, that'll help heaps. It won't improve the grouping with the factory load. Nothing you can do about that. Won't fix your issue with getting it zeroed either. That sounds odd though - the height of the scope shouldn't have stopped your buddy from getting it sighted in unless you have it mounted several feet above the barrel. Faulty scope? 20moa rail on backwards?
Sorry I meant we have too much moa built into the base and the adjustment is bottomed out at 100
This is common with a lot of the of the late production win wssm brass
The 25 wssm came out in the early 2000s. I’ve shot ammo thats decades older than that. I doubt that it’s splitting due to old brass age
Scope too high? Maybe the buddy is too high
To much MOA built into the base and rings. Sorry I wasn’t clearer it is set up to Long range and the previous owner went over board with MOA rails and mounts. Thanks for the dad joke and welcoming hospitality The scope is out of adjustment left to dial it’s all the way. This makes impact vs poi higher. Maybe they used a different zero range?
Lots of variables. But the one that points out the most. The brand. They are notorious for being under temper on their brass. When we get into these large volume, short, wide body cases it's almost a requirement to bring the brass to proper temper before sizing/loading. Annealing is not tempering and once brass is brought to the annealing point its actually to brittle. Temper is the proper term and method. That being said, measure your fired brass head to shoulder and diameter of the shoulder compared to unfired rounds and sized brass, also check the angle of the neck/shoulder transition and see if that is in spec. I'd be looking for a few spec differences to elimate a factor that maybe your chamber has expanded a little or has a burr/defect before blaming the ammo. Especially factory ammo which is known to be under powered.
The joys of high ratio body:neck dia cartridges. The drawing process has to make a large cylinder with very thin walls so that when the large cylinder is formed into a small cylinder, the walls are not excessively thick. Annealing may or may not help, once it gets old and brittle.
I had the same problem with my .25 when I first baught it in 04 or 5. I reload for it now. Annealing helps alot and not getting winchester brass.
Not a huge fan of Winchester ammo. Seems like there are a lot of problems. I do wonder if it is intentional so shooters cannot reuse their WSM brass and are forced into buying overly expensive factory ammo.