New VKT M91

[Calfed]

I recently glommed this VKT M91. The rifle is in great shape, metal and wood. The bore looks almost unfired, although I know that it has been fired, because I shot it myself.





The bore is very tight..I tried a CMP .30 cal muzzle gauge and it would not even start in this muzzle, even though it is nominally .3095. A Prvi Partizan 182 gr round gave considerable "stand off".


Here's the thing..I fired two rounds of Prvi Partizan 182 gr commercial ammo and got considerable primer cratering.

I have always assumed that this indicated excessive pressure. Anyone have an opinion as to whether this ammo safe in this rifle?

Thanks

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