Pistol Primers

[Semtav]

Altho I've always shot pistol primers in my 40-82 because it came with brass that was swaged for pistol primers and they shot real well, I've never tested them side by side with various other primers.

this week I thought I'd try a few in my 45-90 so I threw 4 together to check against my other primers. 3 of the 4 had no vertical and the fourth was touching the bottom of the other.

Yesterday I repeated the test with 10 against a couple batches of rifle primers. Almost identical results.

the first 6 had maybe a quarter bullet vertical, 7th was a called low, 8th was back up with the rest and 9 and 10 were about 1 bullet high.

Very impressive vertical. horizontal was nothing to write home about.

One thing I did different with the pistol primers was to seat a paper wad under the primer to take up a little space for the short primer.

I will be testing these again, putting a paper wad under the rifle primers too to see if that helps with the vertical or if its just the pistol primers doing it.

Load was 90 gr Swiss 1.5
BR-2, GM210M and GM155M primers

One load of 95 gr Swiss 1F was also tested with GM210M primers. it will get a primer test too.