Question about length

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BigK75

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Hey Guys:

I have yet another question. I have a Tikka Tatical T3 .223 that I am making bullets for. To get the length I made three dummy rounds. I am using speer semi-point bullets 55grain. The dummy's came out 2.320, 2.318, 2.317. I subtracted 0.15 from the longest measurement and made all of them at 2.305. However at one point I must have moved the die because I made several at 2.295. Is this okay or are they too short? Can you even make a bullet too short for bolt action.

Thanks,

Claude
 
I can see that if the oal is too long, the action would hang up and the bullet not rise to be injected into the bore. Being too short? well the brass is the same length and the minute amount the bullet is "short" would not stop the bullet from being fully pushed into the bore, but perhaps in some guns the bullet has to stick a little way into the lands. The .223 i load for my savage do vary a little but function fine, never a hangup or misfire and the bolt operates smoothly.
 
your tikka probably will not notice the difference of 1-3 thou on seating depth. when you are talking about 1-3 thou on a micrometer it could simply be the difference between speers and bergers. there are some good benchrest sites on the web that get right into precision reloading. Benchrest shooters have the best in barrels, triggers, stocks, etc. and 1-3 thou variance on seating depth is not acceptable,but those precision made guns will show it on paper.
 
If you're new to reloading, you are pushing the limit as far as bullet jump. Thats not 0.15, its 0.015 - 15 thou. Your bad ones are 25 thou, assuming you did the length trial properly, and that the ogive profiles/bullet tips are constant. The shorter ones will shoot fine, as a separate load, perhaps better than your longer ones.
The trick is to focus on consistency - the rounds should all be the same length, bullet batch, brass spec, runout, etc. Play around with powders and bullet weights, rather than being concerned about tight bullet clearance.
If you want to maintain consistency with this trial, you can.... (fill in the blank)
 
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Yes cosmic your right. I meant to put .015. I just wanted to know if it was a safe thing to do to have them as much as .025 away from the lands and when does it get into dangerous territory. I my question is answered. 0.025 is fine and I go ahead and shoot them.

Thanks,

Claude
 
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