150 grain 175 grain question

[soundwaves]

l use to use 7mmRM 150 grain ferderal POWER-SHOCK and the damage thay made to the animal was huge. thay blew 10 inch holes on the exit woond at 300 yards. then l swithed to PMC 175 grain PSP. thinking l would have eaven more knock down power. bu its supriseing to see that these 175 GRAİNS dont hardly have a exit woond. thay exit the saim way that went in ? PMC rounds are about 6-7 years old but have been stored well. lm wondering if time would do something to velocity ? or could it just be that the PMC are not as good of a round as the federals ?

the federals are about the saim age as the pmc aswell. so l dont see that beeing the problem here.

going down the range soon to sight the gun in for the 150 grains again as l have 5 boxes of them and dont want to buy more ammo till lm out of ammo.

 

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these are the 175 grains. havent got a clue of the velocity of this thing

 

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tried contacting PMC but no reply

 

[Bigeclipse]

l use to use 7mmRM 150 grain ferderal POWER-SHOCK and the damage thay made to the animal was huge. thay blew 10 inch holes on the exit woond at 300 yards. then l swithed to PMC 175 grain PSP. thinking l would have eaven more knock down power. bu its supriseing to see that these 175 GRAİNS dont hardly have a exit woond. thay exit the saim way that went in ? PMC rounds are about 6-7 years old but have been stored well. lm wondering if time would do something to velocity ? or could it just be that the PMC are not as good of a round as the federals ?

the federals are about the saim age as the pmc aswell. so l dont see that beeing the problem here.

going down the range soon to sight the gun in for the 150 grains again as l have 5 boxes of them and dont want to buy more ammo till lm out of ammo.

Soundwave.... an increase in bullet size/weight does not directly mean you will have a larger exit wound. Bullets perform in different ways. Some bullets are meant to expand REALLY fast when they hit their target (creating massive internal damage) and will often not even pass through, while others will have a very small exit hole almost the same size as the entrance. Bullet selection is one of the most important things when shooting at different game. For example...shooting a thin skinned deer...you may want to use something like your federal powershocks, bergers, nosler ballistic tips...etc. these are all made to expand pretty fast and penetrate less. While Nosler partitions for example are made to penetrate deeply which would be great for large game such as elk or moose depending on which caliber you use.

I suspect what happened in your situation is you were shooting an extremely fast caliber for 150grain bullets and those powershoks basically acted like shrapnel causing massive devastation while those PMCs were likely traveling a good deal slower than the 150s preventing them from blowing up or expanding violently. You might have even hit a bone with the 150s which would have caused those soft pointed to break apart as well. The 175s were likely moving slower and maybe you didn't hit rib or any bone which would invite a cleaner pass through. Read up on all the different type bullets out there!!!

a 10inch exit wound is definitely NOT normal. A VERY large exit wound would be considered like a baseball size. I would say a typical exit wound on a bullet "meant" to exit should be about the size of a quarter. Personal I like bullets tipped with a nosler accubond...they are best of both worlds but also cost a pretty penny! The front half of the bullet is meant to explode and break apart while the rear half is meant to pass through.

 

[soundwaves]

nice explanation thanks. l ment the woods were 10 inch round about a baseball size. thanks for the info. aprecheate it.

 

[WildRose]

l use to use 7mmRM 150 grain ferderal POWER-SHOCK and the damage thay made to the animal was huge. thay blew 10 inch holes on the exit woond at 300 yards. then l swithed to PMC 175 grain PSP. thinking l would have eaven more knock down power. bu its supriseing to see that these 175 GRAİNS dont hardly have a exit woond. thay exit the saim way that went in ? PMC rounds are about 6-7 years old but have been stored well. lm wondering if time would do something to velocity ? or could it just be that the PMC are not as good of a round as the federals ?

the federals are about the saim age as the pmc aswell. so l dont see that beeing the problem here.

going down the range soon to sight the gun in for the 150 grains again as l have 5 boxes of them and dont want to buy more ammo till lm out of ammo.

No, the 150's are just running so fast that they are highly frangible and the 175's are just holding together better and giving you controlled expansion vs fragmentation.

The perfect bullet to me is one that gives you a 2" or less exit wound but always exits.

If you move up to the heavier weight Vital Shock you should get the performance you desire. They aren't the highest BC bullets out there but in my experience shooting them in the 300 Rum and 7mm STW they had good accuracy and very satisfactory terminal performance.