| Melted Cases........(don't try this at home...) |  |  | |
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Posted by: Jody Henkle ® 01/04/2002, 21:04:19 Author Profile |
Hello All, Here is my question. Awhile back I was trying to develop a sub sonic 17 load for back yard pest control. I started off with my 17 PPC, Fed 205M (not the ideal case I know) and IMR PB powder. The bullet I started with was 29gr HPBTs. I started reducing the loads until I was getting into the 1100 fps range and soon found out that the 1/9 twist wouldn't stabize this long bullet. I then switched to the 20gr. V-Max. 2.5gr of PB was still running at 1250fps and producing a crack. 2.2grs would stick the bullet in the throat, but here is where it got all weird...... The neck on the PPC would be melted (one one side) when this combo was fired........ Pin holes and such. I immedatly abandon the whole prodject. Does anyone have any insight as to why this was happening? It's almost like the poweder wa laying up against the bullet base and melting it's way thru the case. I was worried that I might have damaged the bore, but after a good cleaning, it shot excellent as usual...... I was a little nervous with the whole detonation thing as I had read about fast burning powders in large cases. I probably should have never be messing with charges this low...... I have seen reduced loads for the .223 with PB and this is where it all started.....jh |
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| Re: Melted Cases........(don't try this at home...) | | ||
| Re: Melted Cases........(don't try this at home...) -- Jody Henkle | Top of thread | Archive | |
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Posted by: jim saubier 01/08/2002, 11:33:26 |
This is indeed a strange occurence that I have never experienced or heard about. I have used mild loads in my 6BR that would smoke the case - instead of just around the neck, the entire case would get the black look from the smoke. Clean to the case head. I have not experimented with the blue dot type of loads yet and haven't heard of any situations like yours. Sure would tend to make me re-evaluate what I was doing and fix the problem though. Keep us posted on your results if you continue to tinker. |
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| Re: Re: Melted Cases........(don't try this at home...) -- jim saubier | Top of thread | Archive | |
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Posted by: Jody Henkle ® 01/08/2002, 20:06:48 Author Profile |
I'm going to give up the reduced loads in the 17 PPC. I have a CCM that I have beem messing with and will try a subsonic load in that when it warms a little. This case should be a lot better suited to this type of play.... A little off topic in this forum, but has an one played with any of the Whispers cartridges from JD Jones? The 6mm and the 300 really intrege me for some reason. What a switch from the 17 PPC huh? I like the extremes I guess....... jh |
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