ballman6711
Member
I promised to do a primer test a few weeks ago, so here it is (part 1). All rounds were loaded with my usual load which is as follows:
5.4gr W-231 (all charges weighed on RCBS 505, scale leveled before adding powder)
Acme 185gr swc
Winchester LPP
Mixed brass
1.245" OAL
.968~.9685" Crimp
I loaded 140 rounds for this test, ten each using the following primers:
Small pistol: CCI 500 spp
Fed 100 spp
Fed 200 smp (magnum)
Fed GM 200 M smp (magnum match)
Small rifle:
CCI 400 srp
CCI 450 smrp (magnum)
CCI BR-4 srp (match)
CCI #41 srp (AR-15)
Fed GM 205 MAR srp (Gold Medal match AR-15)
Large pistol:
CCI 300 lpp
CCI 350 lpp
Fed 155 lmp (magnum)
Fed GM 155 M (Gold Medal match)
The previous problem rounds were using the above load with Fiocchi spp. I had enough left over that I didn't make more, but did include them in today's test.
The gun I used is my Kimber Ultra, 3" 45acp. All springs were replaced within the last 500 rounds or so. The gun hasn't been cleaned since the original problem a few weeks ago because I wanted the same basic conditions for a fair comparison, although I did put a few drops of oil on it this morning before going to the range. The original failure to eject problem happened with a temp of 43* F, the second time was about 50* F, today's temp was 37* F.
Pics and results next.
chris
5.4gr W-231 (all charges weighed on RCBS 505, scale leveled before adding powder)
Acme 185gr swc
Winchester LPP
Mixed brass
1.245" OAL
.968~.9685" Crimp
I loaded 140 rounds for this test, ten each using the following primers:
Small pistol: CCI 500 spp
Fed 100 spp
Fed 200 smp (magnum)
Fed GM 200 M smp (magnum match)
Small rifle:
CCI 400 srp
CCI 450 smrp (magnum)
CCI BR-4 srp (match)
CCI #41 srp (AR-15)
Fed GM 205 MAR srp (Gold Medal match AR-15)
Large pistol:
CCI 300 lpp
CCI 350 lpp
Fed 155 lmp (magnum)
Fed GM 155 M (Gold Medal match)
The previous problem rounds were using the above load with Fiocchi spp. I had enough left over that I didn't make more, but did include them in today's test.
The gun I used is my Kimber Ultra, 3" 45acp. All springs were replaced within the last 500 rounds or so. The gun hasn't been cleaned since the original problem a few weeks ago because I wanted the same basic conditions for a fair comparison, although I did put a few drops of oil on it this morning before going to the range. The original failure to eject problem happened with a temp of 43* F, the second time was about 50* F, today's temp was 37* F.
Pics and results next.
chris