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Post by educatedidiot on Jan 22, 2020 19:10:20 GMT -5
GMB, I looked at those Barnes loads and they were both 100% cartridge fill so they would be OK to use in an SML. Both Varget and RL15 are excellent powders in a 40, although Varget is a little dirty. With Varget, I hit 3 different nodes with a single bullet weight and 3 different powder charges. As far as full forming, IMO, 40 cal is the smallest caliber that it will work in reliably. All other subcals MUST be full formed. I shoot full formed solid coppers sometimes for hunting.
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Post by jims on Jan 22, 2020 20:40:34 GMT -5
I have more than I need. Several SMLs never shot yet. I should thin the herd but sometimes it is hard to pull that trigger.
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Post by sew on Jan 22, 2020 21:44:45 GMT -5
I have more than I need. Several SMLs never shot yet. I should thin the herd but sometimes it is hard to pull that trigger. Back to “Beware of the man who owns one gun....” . In the past few months, I sold my converted HandiRifle and 2 10ML2/45 PNs to get fewer and better guns. Richard’s excellent 45 Rem/Brux/ Sightron 3 6x24 and a smoothsizing die for my 40 PN 10ML2 and a Richard reworked BP plus an adjustable tactical brake. It’ll have a B&L 40mm 4200 6x24 with a likely upgrade to another identical Sightron. Then, there’ll just be the RB OBO 45 shooting 195Bs 2x8 Duralyt , for thick woods hunting and out to 200 yards. And that’s it! 3 guns total. After years of having quite a number of mediocre guns (MLers) , I’ve decided on just two, both ideally set up. Can’t get rid of the OBO: too many memories, state records, etc. I'm glad I thinned the herd. I’m glad Richard did also.
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Post by schunter on Jan 23, 2020 7:58:50 GMT -5
My current .40 is a 15 twist. I have shot 225 to 300 grain bullets to 500 yards with good accuracy.
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Post by Richard on Jan 23, 2020 8:26:16 GMT -5
Steve... don't forget that .45 Rem/Brux has a "brake!". I don't think any of you other muzzleloaders did? Correct me if I am wrong? So, that might be the reason for the lessening of the felt recoil!........and plus the extra weight of the rifle!
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Post by sew on Jan 23, 2020 9:29:02 GMT -5
Steve... don't forget that .45 Rem/Brux has a "brake!". I don't think any of you other muzzleloaders did? Correct me if I am wrong? Do that might be the reason for the lessening of the felt recoil!........and plus the extra weight of the rifle! Richard, I haven’t forgotten. I certainly noticed that the Rem/Brux weighs close to twice the weight of RB OBO and that it has a brake. However, I still was pleasantly surprised at just how much the two combined kept the recoil surprisingly low. Though primarily for noise containment purposes but with increased anticipation of recoil reduction, I’m hoping for a significant recoil reduction with the 40 cal that you put a brake on.
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Post by GMB54-120 on Jan 23, 2020 12:33:35 GMT -5
GMB, I looked at those Barnes loads and they were both 100% cartridge fill so they would be OK to use in an SML. Both Varget and RL15 are excellent powders in a 40, although Varget is a little dirty. With Varget, I hit 3 different nodes with a single bullet weight and 3 different powder charges. As far as full forming, IMO, 40 cal is the smallest caliber that it will work in reliably. All other subcals MUST be full formed. I shoot full formed solid coppers sometimes for hunting. AR COMP is supposed to be similar to RL15 but less temp sensitive. I am liking the pricing and availability of the RL 15 though. Since i did not see it mentioned, im assuming it is not dbl based like RL7 or 10x?
Curious about some of the newer VV powder too. They have a newer dbl based line and it looks like one might be in a good burn rate range for 40cal SML loads. N530 or N540 maybe?
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Post by hillbill on Jan 23, 2020 12:42:21 GMT -5
I did some shooting with RL-15 recently @ 38 degrees, I had right the same speeds as I had at the Dead Zero shoot when the temps were pretty warm, no definitive conclusions but it leads me to believe It's pretty temp stable.
530 & 540 will work with 225s-250s & I have shot 540 with 275s with good results.
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Post by Kyle on Jan 23, 2020 21:09:55 GMT -5
Entertaining the idea of buying my first smokeless ml 0 experience with smokeless powder other than what was in the cartridges I bought I have lots of experience in black and suds but this will be all new for me I am very cautious about this and safety is number one with me but I intend to buy one time and would like to safely get the most bang for the buck all information would be greatly appreciated I may hunt with this rifle but that is not going to be its major use I have two smokeless muzzleloaders, one .40 and one .45 . I have good shooting loads for each of them. From firsthand shooting experiences with the same grain bullets in each caliber, I have noticed the following: 1) A broader range of grain weight bullets can and have been used with a single powder in a .45 smokeless muzzleloader. For example many shooters on this board use IMR4198 for bullets ranging in weight from 250 grains to 325 grains. The .40 has not been proven yet to be as flexible. 2) High ballistic coefficient bullets exist for both calibers. Given the same weight, the BC’s of the .40’s are higher than their .45 big brothers in like series bullets. Close to the same BC’s can be obtained by bullets 50 grains lighter in weight with the .40 compared to the .45. 3) More posted data exists for the .45’s. Data for the .40’s is a work in progress. 4) Is one caliber consistently more accurate than the other? Only time will tell.
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Post by sew on Jan 25, 2020 20:35:46 GMT -5
“1) A broader range of grain weight bullets can and have been used with a single powder in a .45 smokeless muzzleloader. For example many shooters on this board use IMR4198 for bullets ranging in weight from 250 grains to 325 grains. The .40 has not been proven yet to be as flexible. “
I don’t think it will, either. Just the nature of going smaller in caliber.
“2) High ballistic coefficient bullets exist for both calibers. Given the same weight, the BC’s of the .40’s are higher than their .45 big brothers in like series bullets. Close to the same BC’s can be obtained by bullets 50 grains lighter in weight with the .40 compared to the .45. “
What I stated earlier. And , to me, this is a great advantage since we have excess energy in both 40 and 45, we can get the same trajectory or better with less recoil and powder.
Maybe,I’m just a 40 cal fan. But, hopefully with valid reasons.
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Post by sew on Jan 25, 2020 21:24:12 GMT -5
And Kyle, thanks for giving us such great, tightly parameter’d bullets!
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Post by jims on Jan 26, 2020 9:26:16 GMT -5
I agree that the newer .40 bullets offer a lot more possibilities.
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Post by GMB54-120 on Jan 26, 2020 10:49:21 GMT -5
While the sabot is the weak link, those new 40cal bullets breath new life into a 45cal also. A 250gr 40cal Fury will shoot in many 45s. The 225gr Pittman will too. From what im seeing some of the commonly used 45cal sabot powders are responding better to the bullet weight increase as well. Speeds are nearly the same as a 200gr SST.
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