henry931

Ok so I had another experiment today. Set selector to fire bottom barrel, Fire bottom barrel (bang) Push safety straight back and forward again to select under barrel Top barrel goes click Reload Set selector to fire bottom barrel, Fire bottom barrel (bang) Push safety straight back, then across to select over barrel and forward again Fire top barrel (bang) The trigger has 3 contact points: one in the middle to fire either barrel first; and then two either side and to the rear to fire either the top or bottom barrel second. But manually moving the selector across between shots uses the middle forward contact for both. So it seems like using one of these contact points (would be the one on the left hand side) in particular is resulting in a misfire. Perhaps the sear is catching the safety bite in the hammer and stopping it for some reason Maybe the wood could have something to with it - it's a bit warmer then when I last used it I have also tried cartridges up to 32gm now and it makes no difference (slightly less) Baffled... Henry

I've very recently (yesterday) been having a bizzare problem with a Miroku MK38 sporter. I hadn't used the gun for about 2 months prior to yesterday. I have never had a problem before in the 5 years I have had this gun - up until now it has been flawless. So I discovered that if I have the selector to fire bottom barrel first (like I normally do for clays): Bottom barrel goes bang. Top barrel then goes click. There is a normal trigger pull for the 2nd barrel and you can hear the hammer drop, but there is a very light strike (if any) on the primer of the cartridge and it doesn't go off. So it seems like not a problem with the inertia block, as it definitely switches barrels. It will do this every time without fail. The bizzare thing to me is if I have the selector to fire the top barrel first: Top barrel goes bang. Bottom barrel goes bang. The primer strikes on both cartridges/barrels are very strong like they normally are. Now it also does this every time - i.e. 100% reliability over a 100 bird layout. I've tried two different cartridges / different brands 21gm and 25gm. They are light loads but this gun has always fired 21gm before no problem. It makes no difference. Now I took the stock off today and it looks absolutley fine inside. The firing pins are a bit pitted but they still extend a long way. There is no resistance to movement of the firing pins, they are not split. Inertia block moves freely Whats really confusing me is if I fire it with the stock and barrel off I can watch the hammers drop perfectly, the firing pins make solid hits on a piece of soft wood. It seems fine like this going under first then over and vice versa (obviously I have to pull back the inertia block to switch the barrel). It's going to have to see a gunsmith but ideally I need this gun for a comp saturday (I'll take a spare). I just wondered if anyone had any ideas?

I wonder if it is possible that round 12 didn't actually leave the barrel (maybe no / very little powder just pushed bullet into rifling) ... and round 13 pushed 2 bullets out the barrel onto the target, with a corresponding massive increase in pressure. Hope you are alright H

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Cartridge : .244 H&H Mag. Belted Bullet : .243, 100, Nosler PART SP 35642 Cartridge O.A.L. L6: 3.640 inch or 92.46 mm Barrel Length : 26.0 inch or 660.4 mm Predicted Data for Indicated Charges of the Following Powders. Matching Maximum Pressure: 55000 psi, or 379 MPa or a maximum loading ratio or filling of 100 % These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window. C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand that all of the listed powders can be unsuitable for the given combination of cartridge, bullet and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations. USE ONLY FOR COMPARISON ! 245 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped. Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time % Grains Gramm fps % psi psi ms --------------------------------- ----------------------------------------------------------------- ADI AR 2218 94.5 74.8 4.84 3392 98.6 55001 25458 1.291 ! Near Maximum ! ReloadSwiss RS 80 92.8 74.8 4.85 3323 98.7 55001 24251 1.327 ! Near Maximum ! Alliant Reloder-33 90.4 73.8 4.79 3319 98.2 55001 24203 1.328 ! Near Maximum ! Hodgdon H870 95.5 73.3 4.75 3310 99.1 55001 23604 1.330 ! Near Maximum ! Hodgdon Retumbo 93.0 69.5 4.50 3302 100.0 55001 21221 1.312 ! Near Maximum ! ADI AR 2225 93.0 69.5 4.50 3302 100.0 55001 21221 1.312 ! Near Maximum ! Alliant Reloder-50 95.6 76.8 4.98 3302 97.7 55001 24900 1.361 ! Near Maximum ! Norma 217 94.8 69.4 4.50 3296 100.0 55001 21836 1.339 ! Near Maximum ! ADI AR 2217 91.0 66.8 4.33 3276 100.0 55001 20622 1.291 ! Near Maximum ! Hodgdon H1000 91.0 66.8 4.33 3276 100.0 55001 20622 1.291 ! Near Maximum ! Vihtavuori 24N41 93.6 74.0 4.80 3264 93.5 55001 22799 1.298 ! Near Maximum ! Hodgdon 50BMG 98.6 74.3 4.82 3262 89.9 55001 23286 1.307 ! Near Maximum ! Bofors 12,7mmRA NC1214 Lot20115087 96.4 75.8 4.91 3251 91.3 55001 23989 1.356 ! Near Maximum ! Accurate 8700 100.0 77.5 5.02 3249 97.6 54148 22772 1.327 ! Near Maximum ! Hodgdon US 869 98.1 77.7 5.03 3245 93.5 55001 23084 1.318 ! Near Maximum ! SNPE Vectan SP 13 99.8 75.8 4.91 3242 97.5 55001 22430 1.329 ! Near Maximum ! Vihtavuori 20N29 100.0 80.0 5.18 3236 95.6 54213 23493 1.347 ! Near Maximum ! Vihtavuori N170 93.9 69.0 4.47 3216 96.9 55001 20957 1.316 ! Near Maximum ! Lovex D100 91.7 73.4 4.75 3199 94.2 55001 21144 1.309 ! Near Maximum ! +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Cartridge : .244 H&H Mag. Belted Bullet : .243, 90, Barnes 'X' S 24315 Cartridge O.A.L. L6: 3.640 inch or 92.46 mm Barrel Length : 26.0 inch or 660.4 mm Predicted Data for Indicated Charges of the Following Powders. Matching Maximum Pressure: 55000 psi, or 379 MPa or a maximum loading ratio or filling of 100 % These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window. C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand that all of the listed powders can be unsuitable for the given combination of cartridge, bullet and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations. USE ONLY FOR COMPARISON ! 236 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped. Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time % Grains Gramm fps % psi psi ms --------------------------------- ----------------------------------------------------------------- ADI AR 2218 94.3 74.5 4.83 3499 97.5 55001 25086 1.228 ! Near Maximum ! ADI AR 2225 92.7 69.2 4.48 3425 100.0 55001 21126 1.243 ! Near Maximum ! Hodgdon Retumbo 92.7 69.2 4.48 3425 100.0 55001 21126 1.243 ! Near Maximum ! ReloadSwiss RS 80 92.4 74.4 4.82 3424 97.8 55001 23859 1.263 ! Near Maximum ! Alliant Reloder-33 90.0 73.4 4.76 3418 97.1 55001 23777 1.264 ! Near Maximum ! Hodgdon H870 95.0 72.8 4.72 3411 98.3 55001 23251 1.266 ! Near Maximum ! Norma 217 94.3 68.9 4.46 3410 100.0 55001 21675 1.273 ! Near Maximum ! Alliant Reloder-50 94.8 76.1 4.93 3394 96.5 55001 24335 1.294 ! Near Maximum ! ADI AR 2217 90.8 66.6 4.32 3387 99.7 55001 20518 1.227 ! Near Maximum ! Hodgdon H1000 90.8 66.6 4.32 3387 99.7 55001 20518 1.227 ! Near Maximum ! Accurate 8700 100.0 77.4 5.02 3359 96.6 54910 22475 1.256 ! Near Maximum ! Vihtavuori 24N41 93.3 73.7 4.78 3353 91.8 55001 22270 1.241 ! Near Maximum ! Hodgdon 50BMG 98.2 74.0 4.79 3345 87.9 55001 22653 1.249 ! Near Maximum ! Vihtavuori 20N29 99.8 79.7 5.17 3339 94.4 55001 23072 1.275 ! Near Maximum ! SNPE Vectan SP 13 99.3 75.3 4.88 3333 96.2 55001 22008 1.269 ! Near Maximum ! Hodgdon US 869 97.7 77.3 5.01 3331 91.8 55001 22527 1.260 ! Near Maximum ! Bofors 12,7mmRA NC1214 Lot20115087 95.8 75.2 4.87 3327 89.4 55001 23304 1.294 ! Near Maximum ! Vihtavuori N170 93.6 68.7 4.45 3307 95.7 55001 20622 1.260 ! Near Maximum ! PB Clermont PCL 513/520/9520 100.0 75.8 4.91 3292 94.6 53121 21942 1.284 Lovex D100 91.5 73.0 4.73 3285 92.6 55001 20698 1.253 ! Near Maximum ! NC A3502 ,test only 100.0 72.6 4.70 3103 74.7 43630 19692 1.321 TLP A 502(RH) ,test only 100.0 72.6 4.70 3036 76.9 42690 19421 1.350 V1734 7-multiperf ,test only 100.0 72.6 4.70 2271 39.0 23929 10212 1.708 ADI AS 25 BP 100.0 25.0 1.62 2242 100.0 37748 5491 1.412 IMR TrailBoss 100.0 25.0 1.62 2242 100.0 37748 5491 1.412

All shot though a Browning Maxus 3.5" Chamber at 40 yards with a Muller Decoy Choke Installed (nominal quarter choke). Outline is the standard 30" circle. Centres where shown are a standard size clay. Also I was holding the gun very flat for the steel loads - the gun patterened a little higher than I expected. My natural hold is a bit lower anyway and used this for the lead patterns. Eley Pigeon Fibre 32gm 6.5 Shot (Measured pellet diameter 2.52mm = 335 pellets in cartidge). 33% Pattern. RC Sipe Fibre 32gm '6' Shot (Measured pellet diameter 2.67mm = 286 pellets in cartidge). 38% Pattern. RC50 3" Plastic 50gm '0' Shot (Pellet diameter on box 3.9mm = 144 pellets in cartidge). 55% Pattern. Eley Lightning Steel 3" 36gm 3 Shot (Assumed Pellet diameter 3.53mm = 205 pellets in cartidge). 64% Pattern. Gamebore Mammoth Steel 3" 36gm 3 Shot (Measured pellet diameter 3.53mm = 205 pellets in cartidge). 65% Pattern. Gamebore Mammoth Steel 3.5" 42gm BB Shot (Measured pellet diameter 4.25mm = 130 pellets in cartidge). 82% Pattern. Also measured pellet diameters for other steel cartridges: Lyalvale Supreme Steel No.4 3.05mm Eley Lightning Steel No.5 3.07mm Gamebore Super Steel No.5 3.05mm Hull Steel Game No.5 3.08mm Eley Lightning Steel No.1 3.82mm Lyalvale Steel Game No.5 2.80mm It seems most UK manufacturers use continental sizes (i.e. one size bigger) for their steel loads apart from lyalvale, who seem to use the english sizes.

http://www.gamebore.com/products/37/12g-silver-steel-fibre Gamebore ITM can be had in fibre and Eley Bismuth fibre / photo-degradeable also -H

You could put a picatinny rail on it and use the burris signature zee rings to add windage Perhaps the shims would even fit the optilock rings

Should be fine terminal performance wise. Re accuracy you never really know until you try them through the gun Prvi partizan soft points are also normally cheap/adequate if you can get them

Handloads/Factory? A Ballistic Tip / Soft Point / Hollow Point in the 50-55gr range is plenty enough for charlie Should be ideal assuming the gun is a 12" twist

I think you could make it work but ideally you'd handload the 110gr V-Max

I'm quite liking Fiocchi golden pheasant 32gm 5 fibre atm. Someone gave me some RC sipes to try and every other shot the primers were piercing. Fast though

I suggest you "buy once cry once" and order some lapua brass - it's not too expensive in 223 and the primer pockets will stay tight through many loadings. You won't need to touch the pockets or flash holes. As for primers Rem 6.5 are not designed to take .223 pressure. You can get away with say a CCI 400 if you have a tight fitting firing pin but it still has a thiner cup. Ideally you want a Rem 7.5, CCI BR4 or 450 with the thick cups and you'll be in business All the best Henry

+1 Neil Mckillop

Did you hear the pin drop on the second cartridge?

Using a green XRE Cree led T20 with a big aspheric lens for a tight beam. Can ID out to at least 300 yards on something with good contrast like a stubble. On a detachable picatinny mount so takes seconds to put on/take off. I think the green spooks them just a little less than white but there's not alot in it. The green contrasts quite nicely with red illuminated crosshairs too.

On my miroku just pushing the safety on and off again will switch the barrels if one has been fired without going off

.17 HMR 245 ft.lb muzzle energy and the .17 Remington will get up to about 900 ft.lb

I run a K&M expander through the neck to get out any dents and ease the neck tension, try a few cases in the gun to make sure they chamber easily, then prime and load.

Upside down so no oil can run into the trigger. If you want to ease the tension on the firing spring with a bolt action you can hold the trigger while closing the bolt.

Is the problem that the neck isn't being sized down enough by the outer body of the die? or is it than the expander mandrel is actually too wide in diameter? If it's the first removing the expander isn't going to help. I'd probably get a collet/bushing neck die and use the one you have as a body die.

The biggest issue with a wet chamber is that it's now slippery so the brass doesn't stick to it as well under pressure. This increases the pressure/force on the bolt significantly. This is also why you don't want to fire your rifle with oil in the chamber.

I see norma have it listed it on their website now: http://www.norma.cc/en/Products/Hunting/17-Rem/Hornady-V-Max-20-gr/ IF you will be able to get hold of it I wouldn't like to say whether it will be in line with .222/.223 etc (~£1 a round). It may well end up being eye-wateringly expensive I don't know. At least you would have very good brass to reload... Nosler have some good brass out now too - I'm guessing it might actually be rebadged norma. IMHO given the availability situation the cartridge needs be handloaded really. If you want to take fox the 25gr V-Max seems to be a better match and has a much better BC than the 20gr V-Max anyway. Also I've heard CZ are going to do a run in their 527 rifles next year. It's a great round and deserves to be more popular over here

Wouldn't touch a stainless brush personally. I use shooters choice bore solvent for shotguns and it works really well.

If your .22-250 is the standard 1 in 14" twist that doesn't surprise me. The 55gr V-Max is relatively long due to its plastic tip and is very borderline regarding stability in a 14" twist. Some people say it works well for them... In a friends tikka they went sideways... I think it's down to the limited accuracy regarding manufacturers quote of the true twist rate. E.g they say it's 14" but actually its 13.5" or 14.5".

They are my choke of choice for hunting (flush chokes) skeet, 3/8 and 5/8 constrictions. Although for full/extra full constrictions nothing seems to beat Mullers in terms of pattern quality/density in my gun.