eureka: swede problem identified

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   dan offered some another very useful idea on something else that might be responsible for the swede pressure problems, and neck size ain't it.
the possible culprit? primer hole irregularity.
i used a tapered steel pin. this is from visual observation only, but it is striking.
the yugo nny holes were almost identical and consistently the smallest. s and b holes were the largest - and consistent. i used only s and b on my last series of three-hot strings. 40.0 grains of h414 yield nice round primer dents. 41.0 through 42.5 all yielded cratering of some degree or other. the six of winchester holes i measured were wildly inconsistent. two swallowed the pin for its whole length. four others varied in diameter from as small as the yugo holes to as large as the s and b holes.
wow. since i had to recover the ww cases from the trash, i have no way of knowing if one of the two with the largest primer holes yielded the pierced primer at 44.0 grains of h414.
and i re-measured neck-sized ww necks. the diameters were smaller outside than the s and b ones and yugo ones. i give on trying to blame the loader. looks like you were correct in the primer holes being a possible source. the yugo cases - with their smaller and consistent holes - if you remember, had no primer problems at book max of 41.5 grains of h414.
gots to get full-length dies, fresh brass, and start over.

many thanks again.
abiding in Him,
><>

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fish Members Profile Send Private Message Find Members Posts Add to Buddy List .375 Holland & Holland Magnum Joined: 06 February 2004 Location: United States Status: Offline Points: 584	Posted: 06 May 2004 at 12:25
	dan offered some another very useful idea on something else that might be responsible for the swede pressure problems, and neck size ain't it. the possible culprit? primer hole irregularity. i used a tapered steel pin. this is from visual observation only, but it is striking. the yugo nny holes were almost identical and consistently the smallest. s and b holes were the largest - and consistent. i used only s and b on my last series of three-hot strings. 40.0 grains of h414 yield nice round primer dents. 41.0 through 42.5 all yielded cratering of some degree or other. the six of winchester holes i measured were wildly inconsistent. two swallowed the pin for its whole length. four others varied in diameter from as small as the yugo holes to as large as the s and b holes. wow. since i had to recover the ww cases from the trash, i have no way of knowing if one of the two with the largest primer holes yielded the pierced primer at 44.0 grains of h414. and i re-measured neck-sized ww necks. the diameters were smaller outside than the s and b ones and yugo ones. i give on trying to blame the loader. looks like you were correct in the primer holes being a possible source. the yugo cases - with their smaller and consistent holes - if you remember, had no primer problems at book max of 41.5 grains of h414. gots to get full-length dies, fresh brass, and start over. many thanks again. abiding in Him, ><>
	abiding in Him, ><>

fish Members Profile Send Private Message Find Members Posts Add to Buddy List .375 Holland & Holland Magnum Joined: 06 February 2004 Location: United States Status: Offline Points: 584	Posted: 07 May 2004 at 01:57
	hope you guys are not too sick o this topic. re-read my data this morning. lee precision's very own data sheet in the loader box lists 44.0 grains as the h414 max for the swede and 140-grain bullets. so, at no time did i ever exceed max, accidentally or otherwise. i guess y'all are thinking by now if you ever see me, to make sure i do not have rifle powder and reloading equipment in my hands, or you'll sharply head in the other direction. so, i am left with dan's theory it's a primer hole problem, backed up by my little hole measuring effort, and definitely not a powder overload and not profound case neck tension. ergo, it is NOT lee precision's or midwayusa's problem. but i think i will send lee the loader just to be sure there is not something odd or out of spec. many thanks for your patience. Edited by fish
	abiding in Him, ><>

Bronco Members Profile Send Private Message Find Members Posts Add to Buddy List .243 Winchester Joined: 26 June 2003 Location: United States Status: Offline Points: 217	Posted: 07 May 2004 at 17:12
	Fish--Keep us posted on your progress. I think new brass will solve the problem. Also do you have case trimmer, dial caliper, micrometer? Talk at ya later---------Bronco
	My Father didn't bring me into this world to become #2 on the food chain.

fish Members Profile Send Private Message Find Members Posts Add to Buddy List .375 Holland & Holland Magnum Joined: 06 February 2004 Location: United States Status: Offline Points: 584	Posted: 08 May 2004 at 16:34
	yes, no, no.
	abiding in Him, ><>

Timberghozt Members Profile Send Private Message Find Members Posts Add to Buddy List Administrator aka GarryOwen Joined: 21 March 2004 Location: United States Status: Offline Points: 1971	Posted: 10 May 2004 at 15:05
	Fish,let us know how it turns out.I know very little about the 6.5 x55.Always interesting to read and learn about new stuff....Gene