Bore Fit Precision or Overkill
Sept 23, 2021 18:09:38 GMT -5
Post by ET on Sept 23, 2021 18:09:38 GMT -5
Some sabot shooters might find this interesting and some will say this is going overboard. In my case this procedural method of checking bullet/sabot fit makes a difference for my application. In my case I knurl a bullet to get a looser bullet sabot fit to now provide a desired load resistance fit.
Normally I don’t encroach on sabot-less territory but they are precise in their bullet to bore fit to get accuracy. So why shouldn’t this rule also apply to bullet sabot fit? In the case of using sabots a tighter fit falls in line for performance IMO.
For my application I now use a gauge to verify my fit before heading out to shoot. Two incidents sort of gave me a wake-up call with one load being too loose and another being too tight. The loose load turned out I had somehow gotten a few bullets that were only knurled to .453” mixed in with .454” bullets. As for the too tight a load I got a MMP sabot mixed in with my Harvester sabots. When I discovered what was going on I thought, Wade a go Ed you dumb sh!t for screwing that up. Yeah, I abuse myself when I feel I did something stupid, chuckle.
So, for peace of mind, I now gauge every bullet/sabot combination that should limit range session disruption. I’m looking for a .505” fit. My gauge is actually .506”. Here I slide a bullet/sabot into the gauge and if it’s lightly supported/held then I have my desired fit. It then only takes a shake to dislodge the bullet/sabot. Not overly technical but it works, chuckle.
Most 50-SML shooters are quite content with say 1” groups and nothing wrong with that. I know my 10ML-II can do better and will do what is necessary to maintain the accuracy even if it’s give the load a shake, chuckle. Hey it works for me.
Normally I don’t encroach on sabot-less territory but they are precise in their bullet to bore fit to get accuracy. So why shouldn’t this rule also apply to bullet sabot fit? In the case of using sabots a tighter fit falls in line for performance IMO.
For my application I now use a gauge to verify my fit before heading out to shoot. Two incidents sort of gave me a wake-up call with one load being too loose and another being too tight. The loose load turned out I had somehow gotten a few bullets that were only knurled to .453” mixed in with .454” bullets. As for the too tight a load I got a MMP sabot mixed in with my Harvester sabots. When I discovered what was going on I thought, Wade a go Ed you dumb sh!t for screwing that up. Yeah, I abuse myself when I feel I did something stupid, chuckle.
So, for peace of mind, I now gauge every bullet/sabot combination that should limit range session disruption. I’m looking for a .505” fit. My gauge is actually .506”. Here I slide a bullet/sabot into the gauge and if it’s lightly supported/held then I have my desired fit. It then only takes a shake to dislodge the bullet/sabot. Not overly technical but it works, chuckle.
Most 50-SML shooters are quite content with say 1” groups and nothing wrong with that. I know my 10ML-II can do better and will do what is necessary to maintain the accuracy even if it’s give the load a shake, chuckle. Hey it works for me.
