Reloading Question?
I'm tring to reload some 45 acp. Can anybody tell me what kind of primers to use Large pistol or large pistol magnum?[?][:)]
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I read in an older reloading manual that you can substitute Comet for the polishing additive for media. Is that true and can someone tell me how much to use and how long to run the tumbler? 0 -
DIFFERENT BARRELS WILL GET DIFFERENT VELOCITYS WITH THE SAME LOADS, SOMETIMES AS MUCH AS 200 FPS OR MORE. 0 -
no two guns are the same. just like people, the cells are grouped together differently. sounds crazy, but your gun barrel is organic. your bullet is organic. some tomato plants produce better fruit than others. some bbls shoot bullets better than others. theres nothing wrong with your gun. you need to work the load to match your bbl. you cant go on anyones elses data. your gun....your load. keep experimenting. think of the story of the three bears and the bowls of poredge. (this ones too hot! too cold! juuuust right!)
former air operations officer SEAL Delivery Vehicle Team 2. former navy skeet team, navy rifle/pistol team member. co-owner skeetmaster tubes inc.. owner/operator professional shooting instruction.0 -
"By the way, the accuracy is excellent" means that you have, indeed, matched the load to the gun.
Velocity-matching will be hard to do; some manuals use pressure barrels, some use actual firearms.
Where was the manuals' data collected? Was it in Utah, where the air pressure can range from 26"hg to 34"?
What altitude? How warm was it? What was the barrel temp when those loads were tested?
You could conceivably match the velocities listed by polishing or hand-lapping your bore, but that could ruin your groups if you screw up the crown.
You might try using a dab of JB Bore Paste on a patch to see if (when you follow the instructions on the jar)it improves your velocities, but don't expect to find another 80-150fps right away.
If you know it all; you must have been listening.WEAR EAR PROTECTION!0 -
Thanks, guys! With my velocities being lower does that also mean that the pressure is lower? If so, can I experiment with loads hotter than listed? 0 -
The reason I got the 26" barrel is to get the extra veloctiy, it's a lttle disapointing that I may have wasted my money. 0 -
you didnt waste your money. i also wouldnt get too hung-up on velocity. my 6mm rem/26 1/2 hart barrel shoots best when it is moderately loaded. you have a distinct advantage over the 22-250,220 swift, 223.....its your energy in footpounds. i have hit ditchdiggers at 300 yards with 105 gr.hp's and watched them roll over 3x after impact. on a side note, i would be very careful when reloading beyond specs. i know that there is a margin for error factor built into the load manuals...nothing beats knowing your rifle and its capabilities &limitations. when the load manuals post the bullet speed..its always in their best interest to get the most out of it...most people are caught-up with the speed factor. concentrate more on working up the best load along with fpe based on what your intent will be with the rifle. my personal choice is the 105 grainer for shots beyond 300...and 75-90 grainers for 100-300yrds. you have a fine rifle to work with...play around with some loads and forget about getting caught-up in the velocity craze. 0 -
Do your homework and find what other powders are suited for use in your rifle. There may be one out there that will not only give you the accuracy you look for but also the speed you desire. I usually try at least 4 or 5 different powders then settle on the best one. Kinda expensive but that is the fun of rollin your own.
Everyone has a photographic memory. Only some have film.0 -
Scott,
I think that a few things can be brought up again for clarity.
- Reloading manuals and information on the internet are for reference only, since we all own different rifles that respond differently to the same powder and bullet.
- There are fast barrels and there are slow barrels. It's impossible to tell which one is which without shooting them first.
- The .243 Win. cartridge has just a pinch too much powder space for the lighter bullets (55, 58, 65) to perform efficiently. Efficiency means that all of the powder in a full case gets burned up before the bullet leaves the barrel under safe pressures.
- Barrels have more than one sweet spot, especially longer barrels such as yours. If you found one at a lower velocity and there is still a safety margin for increasing velocity and the resultant pressure then go up in powder weight. The benchrest people find 2 or 3 sweet spots with much shorter barrels.
Varget is too fast for the .243 cartridge, in my opinion. It doesn't take up enough space in the case before top, safe pressures are reached, to satisfy me. With your load, the case is less than 84% filled and you are near the top in pressure. I know that the manuals list these loads. But...
Try V V N-550. You can have a nearly full case and still be in the safe zone for pressure and all of the powder burns in a 26" barrel.
Your load for the 95 gr. Partition is the starting load listed by Nosler in their reloading manual. They show the accuracy load as being 44.0 grains and it is still very much in the safe zone for pressure.
The .243 Win. is an excellent cartridge and I think that you just need to try some more combinations to find both the velocity and accuracy that you want.
Best.0 -
THanks again this is great information. I have another question, but I will post it as another topic. 0
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