It seems that Hornady doesn't make a .311" bushing for the bullet comparator, only .30". I am guessing that if you placed a .311" bullet manufactured for a rifle such as the SMLE or Mosin-Nagant into the .30" comparator bushing, you would not have the ogive stop against the bushing. Therefore...
Like I said, I should be subtracting one inch off those lengths. The lengths I listed include the bullet comparator and it's bushing. The actual average length should be 2.274"
I tried the Hornady OAL gauge and bullet comparator this evening for the first time with my Savage 10 LE .308 rifle and a Sierra 175 gr SMK bullet.
Here's 10 independent measurements from the case head to the ogive:
3.279"
3.273"
3.268"
3.275"
3.275"
3.273"
3.272"
3.273"
3.274"
3.275"
3.274"...
Is there enough similarity between the SMK 174 gr HPBT and the Hornady 174 gr FMJ BT that you can use loading data interchangeably between the two bullets?
The published Varget powder max load for the Hornady .311" FMJ BT 174 gr bullet is 39.1 gr. At 39.0 gr, I am only getting 2234 fps. But I want to drive this bullet at 2440 fps to replicate the military load. The max published load for the SMK 174 gr HPBT bullet is 42.0 gr.
Can I safely...
I just put a Green Mountain replacement barrel on my TC Hawken. The hammer aligns imperfectly with the nipple supplied with the barrel, and fails to properly align with the shorter nipple that came with the original barrel. Looks like the positioning of the nipple on the breach is slightly...
OK, guys. You've convinced me. I ordered a Hornady OAL gauge and bullet comparator today.
I'm still going through the process of finding the best powder charge. (Firing rounds loaded at 0.5 gr increments with Varget from 42 gr to 45 gr behind a 175 gr HPBT, I got my best groups around 42.5...
Guys,
Thanks for all of those comments. I'm handloading for a Savage Model 10LE .308 (i.e. bull-barrel). Going to go out tomorrow and put a few rounds through it with different charges of Varget behind a SMK 175 gr HPBT. I guess the question I have now is whether this rifle can be made...
So are you saying that my Sierra Matchking projectiles aren't consistent length? I don't understand why people even bother to record COAL if you can't load to a consistent length...
I don't understand what is going on: I've full-length sized and trimmed my cases, and set the seating die on my press. When I mic the loaded cases, the COAL varies by a few 1000th's of an inch. How can that be? I thought that the seating die was supposed to give you a consistent COAL.
Yep, that's what the problem was...
Tightened up those pins and it is working properly again. Might be worthwhile for RCBS to say something about that in the instructions...
Thanks for your help.
Dave.
I think my RCBS Trim Pro is broken. I was trimming some cases this evening and shell plate stopped holding the cases tight against the TP Compression Pin face, so when I turned the handle with the cutter contacting the case mouth, the case would rotate freely. Obviously this means that the...
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