Finaly found that elusive pressure sign.

[4xforfun]

Just out of curiousity did you change Lots of retumbo or see different weather conditions. I have seen and heard of first account testimonies of Retumbo doing strange things at strange times in 7mm mags and especially .30-378s. All involved changed to H1000 and have never been surprised again. Maybe not the same speed but no more gas bath surprises either, with formerly good to go loads.

Yes...two or three times. But, I have been using the chrony now fairly often. Also, as I said before, after I gave up on making this a 1000 BR match tube and started on the Retumbo I was using 210 VLD's. When I tried the 230 Berger's last spring the chrono was my steady companion. The only difference between the 210 and the 230 was that everything happened one grain sooner.....87 vs 88, 88 vs 89, and ..well i didn't even go to 89 gr with the 230's...I didn't see the need to...been there done that. Each time I switched lots I checked the speed also. No change. Now, knowing powder the way I do, I know that not having to tweak the load to regain the original velocity is fairly rare, which is why I usually buy at least one..sometimes 3 or 4 eight pounders of the same lot at a time. Same with bullets. Buy them by the thousands!!!

 

[Minesweeper3433]

;D Just saying this with a helping of sarcasm but you sound like you need supervision at the reloading bench.

OK..so as non sarcastically as i can be.....what would you do different? You must have someting in your head to have made that statement.

I just don't push my loads anywere near that hot. If I want more velocity I get a longer barrel.

First off, I had no clue that they were hot. I started low, worked my way up till I found the PSI signs...Slight primer cratering( at 89 gr), and a slight hitch at the top of the bolt throw when ejecting a fired case (90 gr). I backed down to 88...no sign of psi. And quite simply, that was where they grouped best on out to 750. Now, if I was like 95% of the reloaders on the planet, I would be done....simply because that 95% don't own a chrony. If I hadn't been working up drops, I too would have been done. If I told this story, but instead of telling you up front that it was a hot load....if I simply asked about the psi signs I was showing, even you would have said...yep, you are good to go.

And, as a side note...just finished the SIXTH firing of the cases today. SIX. How many people out there are getting six firings (or more..these cases still look good...I checked them for the possability of case head separation in front of the belt...good to go) out of a belted magnums?

And to say what you said simply because it is not how you go about things is ridiculous. A hint about using sarcasm...you better be the smartest person in the room if you are going to be sarcastic....no one wants to hear the village idiot spew sarcasm. It just don't work!!

Just sayin!!

Your absolutely right trying to inject a little humor into the situation is completely uncalled for and I have no idea what i am doing regarding firearms and reloading. Sorry I offended you on the internet and insulted your delicate sensibilities in a public forum. I would never mean to insinuate that you don't know what you are doing or maybe you just had a bit of bad luck. Have a good one and hope you can learn to smile on occasion.

 

[M14AMU]

Here's a comment or two from an Ole Phart that's been around a while! I've never understood why some folks think that the bullets they're shooting have to be driven at nanosecond velocities. Yeah...I know the common thinking is it's done for extreme range shooting to get as flat a trajectory as possible but over a span of 60 years of shooting long range it's been my observation that the BEST ACCURACY was always delivered at under maximum attainable velocities; maybe by not much under the max but enough to know by lots of testing that accuracy was best at somewhat reduced loadings which gave/give no visible signs of excessive pressure! It doesn't do much good to 'blow air' by a target with a missed shot, whether it be an animal, steel, or paper! It doesn't matter one whit in how strong a rifle action 'looks'.....steel is fragile and when over-worked by excessive pressure, metal fatigue is a proven fact of science and the beautiful XYZ action that one pays large dollars for is stretched beyond it's structural limits...it becomes a bomb in the making! IMO....anyone that doesn't pay attention to not going beyond certain limits...well....they're about 7/8 of a bubble off of plumb!!

 

[4xforfun]

Here's a comment or two from an Ole Phart that's been around a while! I've never understood why some folks think that the bullets they're shooting have to be driven at nanosecond velocities. Yeah...I know the common thinking is it's done for extreme range shooting to get as flat a trajectory as possible but over a span of 60 years of shooting long range it's been my observation that the BEST ACCURACY was always delivered at under maximum attainable velocities; maybe by not much under the max but enough to know by lots of testing that accuracy was best at somewhat reduced loadings which gave/give no visible signs of excessive pressure! It doesn't do much good to 'blow air' by a target with a missed shot, whether it be an animal, steel, or paper! It doesn't matter one whit in how strong a rifle action 'looks'.....steel is fragile and when over-worked by excessive pressure, metal fatigue is a proven fact of science and the beautiful XYZ action that one pays large dollars for is stretched beyond it's structural limits...it becomes a bomb in the making! IMO....anyone that doesn't pay attention to not going beyond certain limits...well....they're about 7/8 of a bubble off of plumb!!

Velocity wasn't the goal...well...ok it is to a point..otherwise I would be shooting a 30 carbine.....anyway... The point is accuracy...and that is where it shot most accurate. To my knowledge at the time, I wasn't pushing the limit. I quit when I started seeing known PSI signs and backed off to what looked safe. It wasn't untill the fifth fireing that I saw an annomaly.

And if you don't think that pushing things is the way to go, go take a visit with the competition PPC crowd. See if they shoot powder-puff loads.