Reloading observation
02-03-2005 | 06:10 AM
#11
Fork Horn
Joined: Feb 2004
Posts: 279
Likes: 0
From:
RE: Reloading observation
ORIGINAL: rost495
Just noticed the post on not knowing MV. ACtually its true but only to a point. I use the Chrono to let me know if I'm in the range. Heck if I'm shooting a 300 wtby but getting 06 speeds I need to start over again with a new powder or new gun etc.... No need in burning up powder and barrels otherwise.
Jeff
Just noticed the post on not knowing MV. ACtually its true but only to a point. I use the Chrono to let me know if I'm in the range. Heck if I'm shooting a 300 wtby but getting 06 speeds I need to start over again with a new powder or new gun etc.... No need in burning up powder and barrels otherwise.
Jeff
02-03-2005 | 08:31 AM
#12
Joined: Dec 2004
Posts: 324
Likes: 0
From: La Grange, TX
RE: Reloading observation
Oehler has a setup M43 IIRC. Not cheap. One thing that is almost always a sure sign is brass flow. If you get an ejector mark(not the face of the bolt shaving the head on a snug case as it closes- but a true ejector mark) you definitely are at the top end pressure wise.
I had a friend with a slightly different pressure testing system do some work on loads that I shoot in matches that they thought were really too hot. In reality I was running about 65Kpsi and getting ejector marks here and there and when it was 105 F plus etc.... I know thats over what is called safe, but it was to everyones surprise but me, not nearly as high as they were thinking. There is or was a semi reasonable system that could only compare pressure spikes. If anyone wants info I can dig backwards when I have time. Thought being that factory ammo will always err on the light side and you can compare yours to theirs, though it won't give actual pressure readings.
FWIW I suspect that anything thats 62-65KPSI and under in a modern checked out safe rifle, is more than likely never gonna bite ya. But that aside 55KPSI would be more certainly safe.
Jeff
I had a friend with a slightly different pressure testing system do some work on loads that I shoot in matches that they thought were really too hot. In reality I was running about 65Kpsi and getting ejector marks here and there and when it was 105 F plus etc.... I know thats over what is called safe, but it was to everyones surprise but me, not nearly as high as they were thinking. There is or was a semi reasonable system that could only compare pressure spikes. If anyone wants info I can dig backwards when I have time. Thought being that factory ammo will always err on the light side and you can compare yours to theirs, though it won't give actual pressure readings.
FWIW I suspect that anything thats 62-65KPSI and under in a modern checked out safe rifle, is more than likely never gonna bite ya. But that aside 55KPSI would be more certainly safe.
Jeff
02-03-2005 | 08:15 PM
#13
Fork Horn
Joined: Feb 2004
Posts: 279
Likes: 0
From:
RE: Reloading observation
ORIGINAL: rost495
FWIW I suspect that anything thats 62-65KPSI and under in a modern checked out safe rifle, is more than likely never gonna bite ya. But that aside 55KPSI would be more certainly safe.
Jeff
FWIW I suspect that anything thats 62-65KPSI and under in a modern checked out safe rifle, is more than likely never gonna bite ya. But that aside 55KPSI would be more certainly safe.
Jeff
02-06-2005 | 11:19 AM
#14
Typical Buck
Joined: Nov 2003
Posts: 974
Likes: 0
From: Southampton, Ontario, Canada
RE: Reloading observation
For me it depends on what the load is expected to do? Is it a varmint or big gameload? My personal limits on a big game load are the highest velocity I can get and keep the groups under 1.5" at 100 yds. For a varment load the best group gets the nod as all loads have sufficient energy for the job. That's how I do it.
02-26-2005 | 01:49 PM
#15
Dominant Buck
Joined: Feb 2005
Posts: 26,323
Likes: 0
From: WC FL
RE: Reloading observation
ORIGINAL: mossy33oak
Went to the range yesterday with Bigcountry and had something interesting happen that hasnt happened before. I loaded up some new loads, Nosler 115 BT with 4350 and Win lrg rifle primers. I took all 5 recommended charges that the Nosler book recommends for 115 which was 45,46,47,48 and 49 gr. AND I took one load of 52 gr of 4831. This entire batch of ammo was to test a new seating depth. Well after I shot every group, heres the weird part......I had no bad groups, I mean some were .4 and some were .75 and some were 1". But usually when I test 6 different loads in one day I can narrow something down, but now I guess Im looking for some opinions.....Should I pick the overall tightest group period and load it some more, take the top 3 and load some more, or just say the hell with it and load the tightest group of the day that will give me the best velocity?
Went to the range yesterday with Bigcountry and had something interesting happen that hasnt happened before. I loaded up some new loads, Nosler 115 BT with 4350 and Win lrg rifle primers. I took all 5 recommended charges that the Nosler book recommends for 115 which was 45,46,47,48 and 49 gr. AND I took one load of 52 gr of 4831. This entire batch of ammo was to test a new seating depth. Well after I shot every group, heres the weird part......I had no bad groups, I mean some were .4 and some were .75 and some were 1". But usually when I test 6 different loads in one day I can narrow something down, but now I guess Im looking for some opinions.....Should I pick the overall tightest group period and load it some more, take the top 3 and load some more, or just say the hell with it and load the tightest group of the day that will give me the best velocity?
Mossy I would stick with the best one! Did you log-in the loads?
KEEP ON ROOTING!!!
