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BULLET TEST COMPARISON (as promised)

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  #22  
Unread 04-08-2010, 09:25 PM
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Re: BULLET TEST COMPARISON (as promised)

Thanks again Mark! I plan on trying to set up a water media in the near future to give everything a fair chance. Water tends to work quite well and will definitely give more uniform results from shot to shot. AT the very least, I think these first results are good for comparison. The Nosler had a "slight" edge in these tests because it was a 200 grainer fired at equal velocities with the lighter weights. The momentum with the higher sectional density would exert a little more force on the bullet nose and help expansion. Feel free to chime in guys. I would like your input and ideas.......Rich
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  #23  
Unread 04-08-2010, 11:26 PM
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Re: BULLET TEST COMPARISON (as promised)

Quote:
Originally Posted by elkaholic View Post
Thanks again Mark! I plan on trying to set up a water media in the near future to give everything a fair chance. Water tends to work quite well and will definitely give more uniform results from shot to shot. AT the very least, I think these first results are good for comparison. The Nosler had a "slight" edge in these tests because it was a 200 grainer fired at equal velocities with the lighter weights. The momentum with the higher sectional density would exert a little more force on the bullet nose and help expansion. Feel free to chime in guys. I would like your input and ideas.......Rich
Kind of surprised by the Berger pics. Fairly high velocity, little bullet deformation. I thought they were more frangible than that. I have never used them, but thought they had a reputation of being explosive.

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  #24  
Unread 04-09-2010, 12:00 AM
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Re: BULLET TEST COMPARISON (as promised)

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Originally Posted by RockyMtnMT View Post
Kind of surprised by the Berger pics. Fairly high velocity, little bullet deformation. I thought they were more frangible than that. I have never used them, but thought they had a reputation of being explosive.

Steve
I think they are explosive, but the question is at what velocity and upon hitting what? It seems that there might be a little more narrow window where they either explode or don't expand? I'll do some more testing with water and I think that should firm things up a bit........Rich
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  #25  
Unread 04-09-2010, 12:18 AM
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Re: BULLET TEST COMPARISON (as promised)

Interesting results Rich. Like Steve, I would have thought the Bergers and probably the SMK's would have expanded. I always figured the narrow meplat would lead to inconsistent results, but for the most part, figured they would expand at least 90% of the time. It would be interesting to see a little larger sample size. Am looking forward to the water tests.

I had an idea for water tests that I might try someday. Make a plywood box about 4' long by about maybe 1 1/2' square. 2x2's could be used to fasten the plywood at all the joints. Glue and screw it all together. Seal the inside joints and surfaces with polyurethane or driveway sealer (cheaper) to water proof it. Cut a hole in the shooting face and put a block of self sealing foam (like archer's use for targets) over the hole in the face to shoot through. You would probably want to put some sort of pressure relief in the lid, like a piece of PVC pipe sticking up so the box doesn't blow up.

Not real sure how well the self sealing foam will hold up. Construction foam board might be another option and cheaper but might not seal off as well as the self sealing stuff.
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  #26  
Unread 04-09-2010, 01:27 AM
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Re: BULLET TEST COMPARISON (as promised)

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Originally Posted by MontanaRifleman View Post
I had an idea for water tests that I might try someday. Make a plywood box about 4' long by about maybe 1 1/2' square. 2x2's could be used to fasten the plywood at all the joints. Glue and screw it all together. Seal the inside joints and surfaces with polyurethane or driveway sealer (cheaper) to water proof it. Cut a hole in the shooting face and put a block of self sealing foam (like archer's use for targets) over the hole in the face to shoot through. You would probably want to put some sort of pressure relief in the lid, like a piece of PVC pipe sticking up so the box doesn't blow up.

Not real sure how well the self sealing foam will hold up. Construction foam board might be another option and cheaper but might not seal off as well as the self sealing stuff.
I would leave the entire top uncovered - or else expect the unit to be good for no more than one shot from a 7mm-300 mag class cartridge. Water being an non-compressible fluid, I would wager that the pressure spike of an expanding bullet will be too great to be relieved through any constricted area. But video the first shot if you seal the top!
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  #27  
Unread 04-09-2010, 01:34 AM
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Re: BULLET TEST COMPARISON (as promised)

Quote:
Originally Posted by RockyMtnMT View Post
Kind of surprised by the Berger pics. Fairly high velocity, little bullet deformation. I thought they were more frangible than that. I have never used them, but thought they had a reputation of being explosive.

Steve
I fully expect the Bergers will come unglued when they impact water, based on the wound paths I've seen on game. But looking forward to learning how they perform. They shrapnel quite consistently and reliably on the frail ribcage of game animals - broadside hits. That's been my experience. No different than Berger's description of their most typically observed, on-game, wound cavities.
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  #28  
Unread 04-09-2010, 10:38 AM
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Re: BULLET TEST COMPARISON (as promised)

Quote:
Originally Posted by MontanaRifleman View Post
Interesting results Rich. Like Steve, I would have thought the Bergers and probably the SMK's would have expanded. I always figured the narrow meplat would lead to inconsistent results, but for the most part, figured they would expand at least 90% of the time. It would be interesting to see a little larger sample size. Am looking forward to the water tests.

I had an idea for water tests that I might try someday. Make a plywood box about 4' long by about maybe 1 1/2' square. 2x2's could be used to fasten the plywood at all the joints. Glue and screw it all together. Seal the inside joints and surfaces with polyurethane or driveway sealer (cheaper) to water proof it. Cut a hole in the shooting face and put a block of self sealing foam (like archer's use for targets) over the hole in the face to shoot through. You would probably want to put some sort of pressure relief in the lid, like a piece of PVC pipe sticking up so the box doesn't blow up.

Not real sure how well the self sealing foam will hold up. Construction foam board might be another option and cheaper but might not seal off as well as the self sealing stuff.
I made a box VERY similar to what you described one time to test in a slurry. Yes, You do want to keep the lid loose! My ultra had a habit of causing frequent repair work at around 5000 lt/lbs.
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