I have been using Remington large rifle 9 1/2 primers for my .308 load. I am loading 42.9 grains of 8208 with a 168 gr HPBT and getting 2507 fps muzzel velocity. It doesn't seem to be a "hot" load and well within reccomendation but the primer cups are burning pin holes through about 20% of the rounds right at the inside corner of the cup. Bad lot? Any advise would be greatly appriciated.
Primer cup burn through
Started by
tfosters01
, Mar 05 2011 01:33 PM
12 replies to this topic
#1
tfosters01
-
- Banned
-
- 10 posts
Plinker
- Gender:Male
- Location:Morgan Hill. CA
Posted 05 March 2011 - 01:33 PM
#2
donkey12
-
- Members
-
- 290 posts
Predator
- Gender:Male
- Location:San Bernardino
Posted 05 March 2011 - 06:52 PM
Im no expert but i would consider a magnum primer and reworking the load.
Don't be stupid
#3
tfosters01
-
- Banned
-
- 10 posts
Plinker
- Gender:Male
- Location:Morgan Hill. CA
Posted 05 March 2011 - 07:18 PM
A good option.
#4
Divernhunter
-
- Members
-
- 957 posts
Shooter
- Gender:Male
- Location:Denair, CA
- Interests:Hunting, fun target shooting, reloading, collecting firearms. Also enjoy scuba diving and welding. Shoot 22RF to 50bmg.
Posted 05 March 2011 - 10:10 PM
I have been thinking about this today and I will take a shot at it. Have you tried this load in a different rifle? If so the results?? You may have a problem with a firing pin coming out too far or being too sharp(more of a point than rounded). This would show that it is the rifle if the loads work ok in a different rifle. You also could change primer brands with the same load. I would not worry about backing off charges etc. Just try a different primer. If it still does it I would also suspect the rifle.
#5
Bisley
-
- Members
-
- 2,795 posts
Big Kahuna
- Gender:Male
- Location:West Covina, CA
- Interests:The three W's, whiskey, women, weapons. No particular order.
Posted 06 March 2011 - 12:51 AM
A picture always goes a long ways in trying to determine any problem......
#6
4RHUNTS
-
- Members
-
- 1,193 posts
Big Shooter
- Gender:Male
- Location:San Jose, Ca.
- Interests:Hunting for varmints, two and four legged varieties, deer, pigs, birds, reloading, and fishing.
Posted 06 March 2011 - 08:55 AM
Another thought, are the primers seated deep enough? They should be just below flush with the case head.
#7
tfosters01
-
- Banned
-
- 10 posts
Plinker
- Gender:Male
- Location:Morgan Hill. CA
Posted 06 March 2011 - 09:14 AM
I did make sure all the primers were seated properly. The pin holes are occuring at the corner of the cup in every instance. Maybe another manufacturers primer is the answer.
#8
4RHUNTS
-
- Members
-
- 1,193 posts
Big Shooter
- Gender:Male
- Location:San Jose, Ca.
- Interests:Hunting for varmints, two and four legged varieties, deer, pigs, birds, reloading, and fishing.
Posted 06 March 2011 - 09:20 AM
Then next like Divernhunter suggested, I would check the firing pin. Is that a start load, and if not, did the problem occur during load work up, or just with this powder charge?
#9
tfosters01
-
- Banned
-
- 10 posts
Plinker
- Gender:Male
- Location:Morgan Hill. CA
Posted 06 March 2011 - 06:17 PM
The same pin hole burns are in my .308 and 22-250 loads.
#10
4RHUNTS
-
- Members
-
- 1,193 posts
Big Shooter
- Gender:Male
- Location:San Jose, Ca.
- Interests:Hunting for varmints, two and four legged varieties, deer, pigs, birds, reloading, and fishing.
Posted 06 March 2011 - 07:18 PM
Seems pretty obvious it is the primers then.
#11
tfosters01
-
- Banned
-
- 10 posts
Plinker
- Gender:Male
- Location:Morgan Hill. CA
Posted 06 March 2011 - 07:22 PM
For sale "Primers cheap" LOL
#12
ShooterJohn
-
- Root Admin
-
- 19,290 posts
Admin
- Gender:Male
- Location:Northern, CA
- Interests:Hunting, shooting sports and fishing.
Posted 07 March 2011 - 11:07 AM
Time waits for no one--
treasure every moment you have.
#13
Anchor Man
-
- Members
-
- 59 posts
Squirrel Shooter
- Gender:Male
- Location:Foresthill, CA
Posted 14 March 2011 - 11:54 AM
Is there any danger in using magnum primers of the correct size to fit in a 223 shell(cartridge)?Im no expert but i would consider a magnum primer and reworking the load.
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users
