|
|
|
Discussion Forums
Forum Index
> Rifles general discussion
> reloading 270wsm
reloading 270wsm
@ 01:22 am (GMT) |
greg streetlooking at making a load for my 270wsm tikka T3, what are people having success with?I've got heaps of federal brass thinking of using 140gr accubonds with reloader 17. Also see 150gr accubond LR have just come out has anyone used these? |
Replies
@ 03:28 pm (GMT) |
Nathan FosterRe: reloading 270wsmHi Greg, work out what body weights you intend to hunt, then decide on what ranges you intend to hunt to. You can then use the knowledge base to help you decide on optimum projectile designs and weights.Please also read the Part 1 game killing section of the knowledge base, especially the fast killing section. In these forums, you will often see that I sneak over max powder charges with various cartridges. I do not generally do this with the WSM's as the data is usually correct, the pressures are usually correct. Only occasionally will I come across a rifle that allows for over-max reloading methods. |
|
@ 03:20 am (GMT) |
greg streetRe: reloading 270wsmhaving a problem reloading this is my first time,some of my fired cases are sticky to close the bolt is this normal?.Also I've full lenght size some brass and some are very hard to chamber all have been cleaned, sized deburred(all cases are empty just case only), I has marked the cases with a pen and chamber them and the shoulder of the case has wear marks only I've tried moving the die up and down 1/4 turns at a time still the same result. Also tried sizing from 2.085-2.105 same result hard to chamber. I've now got a neck sizing die this seems to work fine so far, is it ok to use the cases that are a little hard to close the bolt?(firing pin has beeb removed for a better feel) Any help would be great as all very new to me. |
|
@ 05:43 pm (GMT) |
Nathan FosterRe: reloading 270wsmHi Greg, Ok, clear communication between us is going to be important here. You said that fired cases are difficult to close the bolt on.Are you trying to put fired cases back into the rifle? If so, it is not unusual for the WSM's to prove difficult to rechamber with the operating pressures involved. Nevertheless, check the case heads for extractor marks (shiny scuff marks on the case head stamp) and or flattened primers. Or- do you mean that the fired cases are difficult regarding extraction after firing a shot? This immediately indicates max pressures and that you need to back off loads. Here is what I would like you to do regarding sizing cases. Remove the expnader / decapper assembly from your FL die. Set the die a quarter turn off trhe shell holder. Lube your case by hand with lee lube on your fingers. Run the case into the die, remove the case, clean it, then try to chamber it. If it is tight, turn the die down an eighth of a turn and try again. If this does not work, turn the die down more. repeat this process until the case finally chambers smoothly in the action. Make sure you use plenty of lube. If you don't. you will extrude (stretch) the case as you try to extract it. Once you have your case properly sized, refit the expander assembly. Now size a case again, lubing the inside of the case neck using a cotton bud. Check the fit of the case in the chamber once again. If the fit is very tight, it means that the case was stretched as it passed over the expander button. If you used plenty of lube when the problem occurred, you will need to mount the expander assembly in a power drill and sand the button briefly, to reduce its diameter slightly and also to smooth it up. Start at 180 grit, go up to either 400 grit and finish with rag/autosol or go up to 1200 grit wet and dry. |
|
@ 12:00 am (GMT) |
greg streetRe: reloading 270wsmOK has have tried fl sizing as you said still no change I also marked the shoulder of the case with a pen the die takes the mark off on the neck and side of the case but not the shoulder.The cases I am using are once fired federal cases fired from the same gun I haven't yet fired any reloaded cases yet. Am I rigth in thinking the die should be taking my pen mark off the shoulder as this seems to be where the case is rubbing when chambering the resized empty case? |
|
@ 04:30 pm (GMT) |
Nathan FosterRe: reloading 270wsmHi Greg, I will assume that you have now done the intial tests carefully with well lubed cases and that the die is now down touching the shellholder and that the cases are still difficult to chamber.If new factory ammo is difficult to chamber- the rifle is at fault and needs its head space adjusted. Take the rifle back to where it was purchased for warranty work. If factory ammo chambers easily and the problem is solely with the die, then the die needs altering. Simply take the die to any machine shop and ask to have 1mm (tolerance -0/+.2mm) removed from the bottom of the die. This is a very simple fix if the die is indeed at fault. |
|
@ 05:02 am (GMT) |
greg streetRe: reloading 270wsmfactory ammo works fine, I've had 1mm taken off the die but still no luck FL sizing but on the plus side my neck sized ammo worked well on the range with nice groupings.I will sit down and have another go and double checks I'm not doing something wrong, would annealing the brass help? |
|
@ 07:02 pm (GMT) |
Nathan FosterRe: reloading 270wsmHow is the case length Greg, have you trimmed the cases? Please use the dimesional tables at the bottom of the .270WSM article to double check max case lengths.I don't think annealing will help in this instance. Very odd. |
|
@ 03:57 am (GMT) |
greg streetRe: reloading 270wsmI've trimmed case to 2.09 and tried 1 down slowly to 2.08 with no luck is it possible my rifle has a tight chamber and is it possible to check this. |
|
@ 04:49 pm (GMT) |
Nathan FosterRe: reloading 270wsmAnything is possible when it comes to rifle machining Greg. The rifle can be sent to Berretta via where you purchased it. Berretta NZ have an in house smith who can check it over.I am quite surprised that with 1mm cut off the die, and the bottom of the die touching the shell holder, that the cases still won't load smoothly. If the neck die is still working OK as you initially mentioned, the problem is the FL die. If the neck sized ammo is tight also, then it is possibly a problem with the chamber but if the head space really was extremely tight, it would be difficult to chamber factory ammo. Browning are the worst for this. Wish I could sit at your bench with you and help. |
Please wait
ABOUT USWe are a small, family run business, based out of Taranaki, New Zealand, who specialize in cartridge research and testing, and rifle accurizing.
|
KNOWLEDGEBASE |
KNOWLEDGEBASE |