Jon A
Well-Known Member
Ah, OK. I was confused.
Gron GG,
Four: New dies? So If I had found these bullets to work well and spent a grundle of money to work up a load for them, when were we going to find out that the "old" bullet was no longer going to be available? Or are you going to produce both bullets? When bullet manufacturers change dies or discontinue bullets, people tend to get really upset!
GG,
The dies he just received this week were ordered last September. He has been waiting on them since then. As you well know, this is fairly standard lead time for bullet making dies. FWIW, most companies improve their product lines all the time and if they don't, they will not be in business long. Someone will come around and improve it for them.
I am sure that he will make you as many of the "old" bullets as you desire. However, the old bullets were made on a die that was purchased off the shelf at Corbin and not specifically designed for these aluminum tips and took many more steps to get them correct. The new dies are designed from the ground up for the aluminum tips. Both dies work, but one is a new gerneration die and the other is an older one.
So, in reality, you tested bullets that will not be the marquis offering in .338 caliber. You tested the initial phase bullets but you can still get them if you want them if you are not interested in the newer generation offerings.
James
tillroot1, I certainly do not know your specific application, but in manufacturing there are often " running changes"!
If GM comes out with a new truck and decides to up the engine size due to customers complaining of lack of power, those first customers don't get there money back, or a new truck. Being first to buy something gets you the chance to try it first, but rarely will it be the best of its style or manufacture.
Clearly if the bullets were totally inappropriate for your application then you deserve your money back, but no amount of pre-production engineering can guarantee a great product "out of the box".
edge.
tillroot1,
The 280s came today.
I gather that these are the longer bearing surface ones from the original die.
They sure do look good. I really liked the way the 265s looked and shot in my RUM.
I'll attempt a 200 yd zero with the same load I use for the SMKs. I think I have enough lee way to compensate for the extra bearing surface with the 20 grains less weight.
I have bunches of SMKs retrieved from my very fine sand back stop. Mostly nothing but jacket and one or two bananas.
I'll have to wait for another pig. But if they shoot good I may attempt a test on an elk shoulder.
I liked what I saw in BD 408's post.
Bearing surface(ie friction) can mean as much if not more than the 20 grains of weight difference
The longer bearing surface can drive presures higher than the 20 less grains of bullet wiegth may indicate.
20grains is only 9.3% difference in this case... could jacket hardness and bearing surface have a more significant effect on pressure?