Yes, I've also read that the problems mostly arrive from the thin skin of the neck..
Case consistency is the key, as well.
Unfortunately, I don't have any gear to measure thickness, runout etc, and I haven't bothered to weigh any cases, or measure capacity.
I have Winchester and Remington cases mostly,
with a smattering of Hornady and E.European.
I just make sure that they are all just within length specs,
and have found that using Lil'gun, small pistol primers, and good bullets, (Nosler 40gr Ballistic Tips) the groups can get pretty tight. It also like 50 gr PSP's.
I did use 35gr Hornady Factory loads in an old Brno (CZ) and it shot the best. (Hadn't discovered Lil'Gun yet !)
I noticed that these factory rounds were crimped, and projectiles cannelured.
Loose projectiles are not cannelured.
Maybe crimped is the way to go ?
I now shoot a
Savage Model 40. Best thing Hornet, since sliced bread.
(Being a single loader, you can seat the longer projectiles out, and still get plenty of Lil'Gun powder into the case).
I've tried Czech and Balkan 45gr roundnose ammo, with variable results,
but here's what my 40gr and 50gr Lil'gun loads can do at 100mtrs (that's 110yds in old money !).
So it's not the rifle !!!!
(I have a tendency to pull right, and that's where the odd one goes, unfortunately.)
cheers,
Nosler 40gr BT

and Hornady 50gr SP
