Bullet question

KDX

KDX

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This is probably one of the dumber one's I've asked....I'm presently developing a load for my .223 with Varget and 69gr SMKs. When I'm done testing the bunch I made tonight (batches in .2gr increments from 24.8gr to 26.2gr) I'm sure I will have found a winner. I have 6 SMKs left to reload and then I'm out. I do have a box of Nosler Custom Competition 69gr bullets and a box of 68gr Hornady BT Match bullets. Will I have to start all over with these bullets or should I just focus a 1/10th or 2/10ths of a grain + or - around the accurate SMK load (what ever it may be)?
 
I can't say for sure about 69 gr bullets. I have found that loading either 80 gr SMK's Vs. 80 gr Nolsers that the same powder charge works for both. I have also found with loading the .308 the powder charge is the same for all 155 gr bullets.
 
when i was loading for my old .223 i found that most bullet weights in the same style of bullet were very close in charge, but goin from somthing liek a sierria with a tangent ogive, to the hornady with the secant ogive, my accuracy for the same charge seemed to go out the window and i would have to start over..


foot note: i may have the typse of ogives mixed up but i know between the 2 they are different
 
Yes, this may/will cause pressure changes which throws all that diligent load development into the crapper, you may be able to duplicate pressures by varying seating depths but then you will need way more bullets.:D

Bearing surface also has an influence along with profile.Damn reloading game is never easy.

ultimate_monkey said:
when i was loading for my old .223 i found that most bullet weights in the same style of bullet were very close in charge, but goin from somthing liek a sierria with a tangent ogive, to the hornady with the secant ogive, my accuracy for the same charge seemed to go out the window and i would have to start over..


foot note: i may have the typse of ogives mixed up but i know between the 2 they are different
Click to expand...
 
Damn you all.:p Thanks for the replys. At the very least I have an excuse to reload a lot of ammo for testing. Maybe one bullet will turn out to be more accurate than the others and then I'll buy a bunch and be set for the summer. I want to shoot this one at 300-500 yards.
 
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